referencing research papers harvard style

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What is Harvard Style?

What you need to know, harvard style tutorial.

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Harvard Style

The Harvard referencing system is known as the Author-Date style . It emphasizes the name of the creator of a piece of information and the date of publication, with the list of references in alphabetical order at the end of your paper.

Unlike other citation styles, there is no single, definitive version of Harvard Style. Therefore, you may see a variation in features such as punctuation, capitalization, abbreviations, and the use of italics. 

Always check with your instructor and follow the rules he or she gives you.

• Harvard Style Guidelines Your class handout
• Harvard Referencing Quick Guide From Staffordshire University

Harvard Style will affect your paper in two places:

• In-text citations in the body of your paper, and
• The reference list at the end of your paper
• All in-text citations should be listed in the reference list at the end of your paper.
• Reference list entries need to contain all the information that someone reading your paper would need in order to find your source.
• Reference lists in Harvard Style are arranged alphabetically by first author.
• Begin your Reference list on a new page after your text and number it consecutively.

Sample References List:

Click on the Links Below to See Additional Examples:

• Sample Paper Paper provided by Kurt Olson
• Harvard Citation Examples Document created by The University of Western Australia

Click on the image below to launch this tutorial that was created by the University of Leeds. The section on Citing in Text is especially useful.

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• Harvard Referencing for Journal Articles | Templates & Examples

Harvard Referencing for Journal Articles | Templates & Examples

Published on 20 May 2020 by Jack Caulfield . Revised on 7 November 2022.

In Harvard style, to reference a journal article, you need the author name(s), the year, the article title, the journal name, the volume and issue numbers, and the page range on which the article appears.

If you accessed the article online, add a DOI (digital object identifier) if available.

Scribbr’s free Harvard reference generator can instantly create accurate references for a wide variety of source types:

Harvard Reference Generator

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Table of contents

Online-only journal articles, articles with multiple authors, referencing a whole issue of a journal, referencing a preprint journal article, frequently asked questions about referencing journal articles in harvard style.

To reference an online journal article with no print version, always include the DOI if available. No access date is necessary with a DOI. Note that a page range may not be available for online-only articles; in this case, simply leave it out, as in this example.

Online-only article with no DOI

When you need to reference an online-only article which doesn’t have a DOI, use a URL instead – preferably the stable URL often listed with the article. In this case, you do need to include an access date.

Note that if an online article has no DOI but does have a print equivalent, you don’t need to include a URL. The details of the print journal should be enough for the reader to locate the article.

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Journal articles often have multiple authors. In both your in-text citations and reference list, list up to three authors in full. Use the first author’s name followed by ‘ et al. ’ when there are four or more.

When you want to reference an entire issue of a journal instead of an individual article, you list the issue editor(s) in the author position and give the title of the issue (if available) rather than of an individual article.

When you reference an article that’s been accepted for publication but not yet published, the format changes to acknowledge this.

If it’s unknown where or whether the article will be published, omit this information:

In Harvard referencing, up to three author names are included in an in-text citation or reference list entry. When there are four or more authors, include only the first, followed by ‘ et al. ’

In Harvard style , when you quote directly from a source that includes page numbers, your in-text citation must include a page number. For example: (Smith, 2014, p. 33).

You can also include page numbers to point the reader towards a passage that you paraphrased . If you refer to the general ideas or findings of the source as a whole, you don’t need to include a page number.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2022, November 07). Harvard Referencing for Journal Articles | Templates & Examples. Scribbr. Retrieved 16 September 2024, from https://www.scribbr.co.uk/referencing/harvard-journal-article-reference/

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Quick guide to Harvard referencing (Cite Them Right)

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There are different versions of the Harvard referencing style. This guide is a quick introduction to the commonly-used Cite Them Right version. You will find further guidance available through the OU Library on the Cite Them Right Database .

For help and support with referencing and the full Cite Them Right guide, have a look at the Library’s page on referencing and plagiarism . If you need guidance referencing OU module material you can check out which sections of Cite Them Right are recommended when referencing physical and online module material .

This guide does not apply to OU Law undergraduate students . If you are studying a module beginning with W1xx, W2xx or W3xx, you should refer to the Quick guide to Cite Them Right referencing for Law modules .

Table of contents

In-text citations and full references.

• Secondary referencing
• Page numbers
• Citing multiple sources published in the same year by the same author

Full reference examples

Referencing consists of two elements:

• in-text citations, which are inserted in the body of your text and are included in the word count. An in-text citation gives the author(s) and publication date of a source you are referring to. If the publication date is not given, the phrase 'no date' is used instead of a date. If using direct quotations or you refer to a specific section in the source you also need the page number/s if available, or paragraph number for web pages.
• full references, which are given in alphabetical order in a  reference list at the end of your work and are not included in the word count. Full references give full bibliographical information for all the sources you have referred to in the body of your text.

To see a reference list and intext citations check out this example assignment on Cite Them Right .

Difference between reference list and bibliography

a reference list only includes sources you have referred to in the body of your text.

a bibliography includes sources you have referred to in the body of your text AND sources that were part of your background reading that you did not use in your assignment.

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Examples of in-text citations

You need to include an in-text citation wherever you quote or paraphrase from a source. An in-text citation consists of the last name of the author(s), the year of publication, and a page number if relevant. There are a number of ways of incorporating in-text citations into your work - some examples are provided below. Alternatively you can see examples of setting out in-text citations in Cite Them Right .

Example with one author:

Almeroth-Williams, T. (2019) City of Beasts: How Animals Shaped Georgian London . Manchester: Manchester University Press.

RSPCA (2024) Caring for cats and kittens . Available at: https://www.rspca.org.uk/adviceandwelfare/pets/cats (Accessed: 1 August 2024).

Example with two or three authors:

Grayling, A. and Ball, B. (2024) ' Philosophy is crucial in the age of AI', The Conversation , 1 August. Available at: https://theconversation.com/philosophy-is-crucial-in-the-age-of-ai-235907 (Accessed: 1 August 2024).

Chu, M., Leonard, P. and Stevenson, F. (2012) ' Growing the Base for Citizen Science: Recruiting and Engaging Participants', in J.L. Dickinson and R. Bonney (eds.) Citizen Science: Public Participation in Environmental Research . Ithaca: Cornell University Press, pp. 69-81.

Example with four or more authors:

Young, H.D. et al. (2015) Sears and Zemansky's university physics . San Francisco, CA: Addison-Wesley.

Note: You can choose one or other method to reference four or more authors (unless your School requires you to name all authors in your reference list) and your approach should be consistent.

Online module materials

(Includes written online module activities, audio-visual material such as online tutorials, recordings or videos).

When referencing material from module websites, the date of publication is the year you started studying the module.

Surname, Initial. (Year of publication/presentation) 'Title of item'. Module code: Module title . Available at: URL of VLE (Accessed: date).

OR, if there is no named author:

The Open University (Year of publication/presentation) 'Title of item'. Module code: Module title . Available at: URL of VLE (Accessed: date).

Rietdorf, K. and Bootman, M. (2022) 'Topic 3: Rare diseases'. S290: Investigating human health and disease . Available at: https://learn2.open.ac.uk/mod/oucontent/view.php?id=1967195 (Accessed: 24 January 2023).

The Open University (2022) ‘3.1 The purposes of childhood and youth research’. EK313: Issues in research with children and young people . Available at: https://learn2.open.ac.uk/mod/oucontent/view.php?id=1949633&section=1.3 (Accessed: 24 January 2023).

You can also use this template to reference videos and audio that are hosted on your module website:

The Open University (2022) ‘Video 2.7 An example of a Frith-Happé animation’. SK298: Brain, mind and mental health . Available at: https://learn2.open.ac.uk/mod/oucontent/view.php?id=2013014&section=4.9.6 (Accessed: 22 November 2022).

The Open University (2022) ‘Audio 2 Interview with Richard Sorabji (Part 2)’. A113: Revolutions . Available at: https://learn2.open.ac.uk/mod/oucontent/view.php?id=1960941&section=5.6 (Accessed: 22 November 2022).

Note: if a complete journal article has been uploaded to a module website, or if you have seen an article referred to on the website and then accessed the original version, reference the original journal article, and do not mention the module materials. If only an extract from an article is included in your module materials that you want to reference, you should use secondary referencing, with the module materials as the 'cited in' source, as described above.

Surname, Initial. (Year of publication) 'Title of message', Title of discussion board , in Module code: Module title . Available at: URL of VLE (Accessed: date).

Fitzpatrick, M. (2022) ‘A215 - presentation of TMAs', Tutor group discussion & Workbook activities , in A215: Creative writing . Available at: https://learn2.open.ac.uk/mod/forumng/discuss.php?d=4209566 (Accessed: 24 January 2022).

Note: When an ebook looks like a printed book, with publication details and pagination, reference as a printed book.

Surname, Initial. (Year of publication) Title . Edition if later than first. Place of publication: publisher. Series and volume number if relevant.

For ebooks that do not contain print publication details

Surname, Initial. (Year of publication) Title of book . Available at: DOI or URL (Accessed: date).

Bell, J. (2014) Doing your research project . Maidenhead: Open University Press.

Adams, D. (1979) The hitchhiker's guide to the galaxy . Available at: http://www.amazon.co.uk/kindle-ebooks (Accessed: 23 June 2021).

Note: Books that have an editor, or editors, where each chapter is written by a different author or authors.

Surname of chapter author, Initial. (Year of publication) 'Title of chapter or section', in Initial. Surname of book editor (ed.) Title of book . Place of publication: publisher, Page reference.

Franklin, A.W. (2012) 'Management of the problem', in S.M. Smith (ed.) The maltreatment of children . Lancaster: MTP, pp. 83–95.

Note: When referencing a chapter of an edited book, your in-text citation should give the author(s) of the chapter.

Surname, Initial. (Year of publication) 'Title of article', Title of Journal , volume number (issue number), page reference.

If accessed online:

Surname, Initial. (Year of publication) 'Title of article', Title of Journal , volume number (issue number), page reference. Available at: DOI or URL (if required) (Accessed: date).

Shirazi, T. (2010) 'Successful teaching placements in secondary schools: achieving QTS practical handbooks', European Journal of Teacher Education , 33(3), pp. 323–326.

Shirazi, T. (2010) 'Successful teaching placements in secondary schools: achieving QTS practical handbooks', European Journal of Teacher Education , 33(3), pp. 323–326. Available at: https://libezproxy.open.ac.uk/login?url=https://search.ebscohost.com/log... (Accessed: 27 January 2023).

Barke, M. and Mowl, G. (2016) 'Málaga – a failed resort of the early twentieth century?', Journal of Tourism History , 2(3), pp. 187–212. Available at: https://doi.org/10.1080/1755182X.2010.523145

Surname, Initial. (Year of publication) 'Title of article', Title of Newspaper , Day and month, Page reference.

Surname, Initial. (Year of publication) 'Title of article', Title of Newspaper , Day and month, Page reference if available. Available at: URL (Accessed: date).

Mansell, W. and Bloom, A. (2012) ‘£10,000 carrot to tempt physics experts’, The Guardian , 20 June, p. 5.

Roberts, D. and Ackerman, S. (2013) 'US draft resolution allows Obama 90 days for military action against Syria', The Guardian , 4 September. Available at: http://www.theguardian.com/world/2013/sep/04/syria-strikes-draft-resolut... (Accessed: 9 September 2015).

Surname, Initial. (Year that the site was published/last updated) Title of web page . Available at: URL (Accessed: date).

Organisation (Year that the page was last updated) Title of web page . Available at: URL (Accessed: date).

Robinson, J. (2007) Social variation across the UK . Available at: https://www.bl.uk/british-accents-and-dialects/articles/social-variation... (Accessed: 21 November 2021).

The British Psychological Society (2018) Code of Ethics and Conduct . Available at: https://www.bps.org.uk/news-and-policy/bps-code-ethics-and-conduct (Accessed: 22 March 2019).

Note: Cite Them Right Online offers guidance for referencing webpages that do not include authors' names and dates. However, be extra vigilant about the suitability of such webpages.

Surname, Initial. (Year) Title of photograph . Available at: URL (Accessed: date).

Kitton, J. (2013) Golden sunset . Available at: https://www.jameskittophotography.co.uk/photo_8692150.html (Accessed: 21 November 2021).

stanitsa_dance (2021) Cossack dance ensemble . Available at: https://www.instagram.com/p/COI_slphWJ_/ (Accessed: 13 June 2023).

Note: If no title can be found then replace it with a short description.

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Journal article

• A-Z of Harvard references
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• Magazine article
• Newspaper article
• Online video
• Radio and internet radio
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• Book (printed, one author or editor)
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This guidance can be used for articles from both print and online journals. 

To be made up of:

• Author (surname followed by initials).
• Year of publication (in round brackets).
• Title of article (in single quotation marks).
• Title of journal (in italics - capitalise first letter of each word in title, except for linking words such as and, of, the, for).
• Issue information, that is, volume (unbracketed) and, where applicable, part number, month, or season (all in round brackets).
• Page reference.
• DOI (if available).

In-text citation:

(Skelton, 2011)

Reference list:

Skelton, A. (2011). ‘Value conflicts in higher education teaching’, Teaching in Higher Education , 17(3), pp.257-268. doi: 10.1080/13562517.2011.611875.

Pre-publication Journal Article

If you are referencing an article that has not yet been published, follow the same format as for a standard journal article, and add:

• To be published in (if stated).
• [Preprint] (in square brackets).
• Available at: URL.
• (Accessed: date).

 (Jones, Kree and Rigby, 2014).

Jones, J., Kree, J. and Rigby, P. (2014). ‘Aerobic capacity’. To be published in Journal of Strength and Conditioning Research [Preprint]. Available at: http://journals.lww.com/jscr/Abstract/2015 (Accessed: 23 June 2015).

Quick links

• Harvard references A-Z

Journal Article with Three to Seven Authors

If there are four or more authors cite the first name listed in the source followed by et al. All authors'/editors' names should be listed in your reference.

 (Darlow et al., 2013).

Reference List :

Darlow, B., Dowell, A., Baxter, G. D., Mathieson, F., Perry, M. and Dean, S. (2013). 'The enduring impact of what clinicians say to people with low back pain', Annals of Family Medicine , 11(6), pp.527-534.

Journal Article Accessed via Moodle

If you are referencing an article you accessed via Moodle, follow the same format as for a standard journal article, and add:

• Module code: module title (in italics).
• Available at: Moodle’s URL.

 (Jacobs et al., 2010)

Jacobs, A., Leach, C. and Spencer, S. (2010) 'Learning Lives and Alumni Voices', Oxford Review of Education , 36(2), pp.219-32. EDPS0013: Archive Research and Oral History in Education. Available at: https://moodle.ucl.ac.uk/mod/url/view.php?id=144138 (Accessed: 13 January 2021).

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Harvard Citation Style: Introduction

Introduction

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In This Guide...

Click on the links below for further information on referencing each material type

Why is Referencing Important?

Getting started.

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Referencing or citing your sources is an important part of academic writing. It lets you acknowledge the ideas or words of others if you use them in your work and helps avoid plagiarism.

Referencing also demonstrates that you've read relevant background literature and you can provide authority for statements you make in your assignments.

The Harvard citation style can vary in minor features such as punctuation, capitalization, abbreviations, and the use of italics.

Note: Always check with your instructor/professor for which citation style they prefer you to use.

How and When to Cite - GW Writing Center

The Dos and Don'ts of Paraphrasing - GW Writing Center

There are two components to referencing: in-text citations in your paper and the reference list at the end of your paper.

The in-text citation:

Harvard is an 'author/date' system, so your in-text citation consists of author(s) and year of publication.

In-text citation of a book (the same format applies for a journal article)

If you quote directly from an author or to cite a specific idea or piece of information from the source you need to include the page number of the quote in your in-text citation.

The reference list:

All in-text citations should be listed in the reference list at the end of your document. The reference list should include details representing all the works you cite in your document and it should be in alphabetical order by author.

Reference list entry for a journal

Reference list entries contain all the information that someone needs to follow up your source. Reference lists in Harvard are arranged alphabetically by author.

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Harvard Citation Guide: Getting Started

• Getting Started
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What is Harvard Style?

Harvard style is a set of rules for research papers and publications. It is one of the most widely used styles in the world.

In Harvard, you must cite sources that you have paraphrased, quoted, or consulted to write your research paper. Cite your sources in two places:

• In the body of your paper (in-text citation).
• In the Reference list at the end of your paper (full bibliographic reference).

Digital Object Identifiers (DOI)

Also known as a permalink, a DOI, or  digital object identifier , is an article's permanent online location. DOIs are used for a variety of academic and non-academic sources that are located online. 

Include a DOI for all works that have a DOI. If an online work has both a DOI and a URL, include only the DOI; if the source only has a URL, include the URL.

Cite Them Right 11th edition

Many of the disciplines and institutions that favor Harvard style use  Cite Them Right 11th edition  as their primary manual.

Cite Them Right   This is the official website for Cite Them Right.

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Cite A Journal in Harvard style

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• Select style:
• Archive material
• Chapter of an edited book
• Conference proceedings
• Dictionary entry
• Dissertation
• DVD, video, or film
• E-book or PDF
• Edited book
• Encyclopedia article
• Government publication
• Music or recording
• Online image or video
• Presentation
• Press release
• Religious text

Use the following template or our Harvard Referencing Generator to cite a journal. For help with other source types, like books, PDFs, or websites, check out our other guides. To have your reference list or bibliography automatically made for you, try our free citation generator .

Reference list

Place this part in your bibliography or reference list at the end of your assignment.

In-text citation

Place this part right after the quote or reference to the source in your assignment.

Popular Harvard Citation Guides

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Other Harvard Citation Guides

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• How to cite a E-book or PDF in Harvard style
• How to cite a Edited book in Harvard style
• How to cite a Email in Harvard style
• How to cite a Encyclopedia article in Harvard style
• How to cite a Government publication in Harvard style
• How to cite a Interview in Harvard style
• How to cite a Legislation in Harvard style
• How to cite a Magazine in Harvard style
• How to cite a Music or recording in Harvard style
• How to cite a Newspaper in Harvard style
• How to cite a Patent in Harvard style
• How to cite a Podcast in Harvard style
• How to cite a Presentation or lecture in Harvard style
• How to cite a Press release in Harvard style
• How to cite a Religious text in Harvard style
• How to cite a Report in Harvard style
• How to cite a Software in Harvard style

Home / Guides / Citation Guides / Harvard Referencing / Harvard Referencing Style Examples

Harvard Referencing Style Examples

What is harvard referencing style.

Citing the work of others helps to make your work more impactful. It could be direct quotes , paraphrases of someone else’s ideas, statistical figures, or summaries of main points. There are different methods for crediting resources; Harvard referencing style (or Harvard style for short) is one such method.  

Harvard style follows the author-date system and includes two types of citations:

• in-text citations  
• references  

In-text citations

In-text citations  are included within the text of the main document. They are placed next to the information you are referencing, so the reader is clear on what information came from another source.

In-text citation example:

(Bloom, 2005) or Bloom (2005) wrote…

Every in-text citation has a corresponding reference in a reference list. A reference includes additional details about each source referenced. This enables the reader to refer to the original source, should they need to.  

The reference list is a detailed list of all the works consulted while writing. It is placed at the end of the document.  

Reference example for the above in-text citation:

Author Surname, Initials. (Publication Year) Title of the text in italics. Place of Publication: Publisher.

Bloom, H. (2005) Novelists and novels . Philadelphia: Chelsea House Publishers.

Below are Harvard referencing examples of in-text citations and reference list entries for the different kinds of sources that you might use.  

In-text citation structure and example:  

(Author Surname, Publication Year)

(Ozeki, 2013)  

Reference structure and example:  

Author Surname, Initials. (Publication Year) Title. Place of Publication: Publisher.  

Ozeki, R. (2013) A tale for the time being . New York: Penguin Books.  

Book with two or three authors

For books with two or three authors, the names of all the authors are given in both the in-text citation and the reference entry.  

(1 st Author Surname and 2 nd Author Surname, Publication Year)  

(Lodge and Wood, 2000)

1 st Author Surname, Initials. and 2 nd Author Surname, Initials. (Publication Year) Title of the text in italics. Place of Publication: Publisher.  

Lodge, D. and Wood, N. (2000) Modern criticism and theory: a reader. 2nd edn. Harlow: Longman.  

Book with four or more authors

If the number of authors is four or more, only the first author’s name is used followed by ‘et al.’ , italicised, which is Latin for ‘and others’.

(1 st Author Surname et al., Publication Year)

(Akmajian et al. , 2014)

Reference structure and example:

1 st Author Surname, Initials. e t al. (Publication Year) Title of the text in italics. Place of Publication: Publisher.

Akmajian, A. et al. (2014) Linguistics: an introduction to language and communication . 6th edn. Cambridge, MA: MIT Press.

Book with translator  

For books with a translator, only the author’s name is included in the in-text reference.   The translator is given in the reference list entry, along with the language from which it was translated. This comes right after the title.

(Dostoevsky, 1993)

Author Surname, Initials. (Publication Year) Title of the text in italics. Translated from the Language by Translator Initials. Surname. Place of Publication: Publisher.  

Dostoevsky, F. (1993) Crime and punishment . Translated from the Russian by R. Pevear and L. Volokhonsky. London: Vintage.  

Journal articles

Journal articles are highly credible sources of information. The example below was authored by more than three individuals, so the term ‘ et al. ’ is used in lieu of listing all authors.

In-text citation structure and example:

(Lomolino et al., 2020)

Journal reference list entries often have extra information, such as article title, volume, issue number, page numbers, or a specific date.

With journals, the volume number follows the title. If there are any specific parts of the issue, numbered or organized according to months, these details are mentioned alongside in brackets.  

Author Surname, Initials. (Publication Year) ‘Article title’, Journal Name , Volume(Issue), Page(s). Available at: URL or DOI (Accessed: date).  

Lomolino, M. et al. (2013) ‘Of mice and mammoths: generality and antiquity of the island rule’, Journal of Biogeography , 40(8), pp. 1427-1439. Available at: https://www.jstor/org/stable/23463664 (Accessed: 10 September 2020).

Newspaper or magazine

(Ingle, 2020)

Author Surname, Initials. (Publication Year) ‘Article title’, Newspaper/Magazine Name , Day Month Published, Page(s). Available at: URL or DOI (Accessed: date).  

Ingle, S. (2020) ‘Geraint Thomas insists he has nothing to prove at road world championships’, The Guardian, 24 September. Available at: https://www.theguardian.com/sprot/2020/sep/24/geraint-thomas-insists-he-has-nothing-to-prove-at-road-world-championships-cycling (Accessed: 11 October 2020).

  For online articles, you should always include the URL and date of access.

Social media and other online sources

(Author/Poster Name, Publication Year)

(Cramer, 2020)

References for social media posts have a similar format to online articles. However, sometimes they don’t have a true ‘title’. For example, for Twitter posts, the full text of the tweet is used as the title, unless the tweet is overly long.

Author/Poster Surname, Initial(s). [@Handle] (Publication year) Content of Post [Social Media Site] Day Month Published. Available at: URL (Accessed: Day Month Year).

Cramer, K. [@SenKevinCramer] (2020) Supreme Court vacancies are an important issue to the people I serve [Twitter] 24 September. Available at: https://twitter.com/SenKevinCramer/status/1308915548244398081 (Accessed: 25 September 2020).

The format for citing social media is different than the format for citing regular websites and web pages. This guide on how to cite a website in Harvard style provides details on how to cite web content that is not posted on social media.

(Image Creator or Photographer Surname, Publication Year)

(Pinneo, 2020)

Print reference structure:  

Author, Initial(s). (Year) Title of the Image [Photograph]. Place of Publication: Publisher (if available).

Online reference structure and example:

If the image is on the Internet, then the place of publication and the publisher name are replaced by the image URL and access date.

Author, Initial(s). (Year) Title of the Image .   Available at: URL (Accessed: Day Month Year).  

Pinneo, B.J. (2020) Dusty dreams . Available at: https://www.nationalgeographic.com/photography/photo-of-the-day/2020/09/dusty-dreams/ (Accessed: 23 September 2020).

In-text reference structure and example:  

(Film Title , Year Released )

( Pride & Prejudice , 2005)

For films, the title of the film is used in place of the author name.  

Title of the Film (Year Released) Directed by Director Initial. Surname. Available at: Name of Streaming Service (Accessed: Day Month Year).  

Pride & Prejudice (2005) Directed by J. Wright. UK: Universal Pictures. Available at: Netflix (Accessed: 29 September 2020).

Published October 29, 2020.

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Harvard Referencing Guide

There are various referencing styles, such as APA, MLA, Chicago, and Harvard referencing style. The Harvard style of referencing for citing information sources is one of the most commonly used referencing systems in universities around the world. There are two types of citations included in the Harvard referencing system: the in-text citations and the reference list.

In-text citations are used when directly paraphrasing or quoting a source. In-text citations are placed within the working body and contain the author’s name and the year of publication. On the other hand, reference lists are usually placed at the end of the academic paper and contain complete citations for the researcher’s academic reference resources.

This Harvard referencing guide will help you understand the basics of in-text citations and reference lists in the Harvard style of referencing. It also provides information on compiling references with the Harvard referencing style, cites electronic sources , and cites government publications and conferences and presentations .

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There are various referencing styles, such as APA, MLA, Chicago, and Harvard referencing style. In this article, we are going to talk about the Harvard referencing style.

The purpose of a reference or bibliography list is to enable the readers to trace the primary sources easily. Different types of sources require

If you are using any electronic sources such as images, audios, videos, webpages, etc., you need to acknowledge the sources to avoid plagiarism.

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🤔 What is a Harvard Referencing Generator?

A Harvard Referencing Generator is a tool that automatically generates formatted academic references in the Harvard style.

It takes in relevant details about a source -- usually critical information like author names, article titles, publish dates, and URLs -- and adds the correct punctuation and formatting required by the Harvard referencing style.

The generated references can be copied into a reference list or bibliography, and then collectively appended to the end of an academic assignment. This is the standard way to give credit to sources used in the main body of an assignment.

👩‍🎓 Who uses a Harvard Referencing Generator?

Harvard is the main referencing style at colleges and universities in the United Kingdom and Australia. It is also very popular in other English-speaking countries such as South Africa, Hong Kong, and New Zealand. University-level students in these countries are most likely to use a Harvard generator to aid them with their undergraduate assignments (and often post-graduate too).

🙌 Why should I use a Harvard Referencing Generator?

A Harvard Referencing Generator solves two problems:

• It provides a way to organise and keep track of the sources referenced in the content of an academic paper.
• It ensures that references are formatted correctly -- inline with the Harvard referencing style -- and it does so considerably faster than writing them out manually.

A well-formatted and broad bibliography can account for up to 20% of the total grade for an undergraduate-level project, and using a generator tool can contribute significantly towards earning them.

⚙️ How do I use MyBib's Harvard Referencing Generator?

Here's how to use our reference generator:

• If citing a book, website, journal, or video: enter the URL or title into the search bar at the top of the page and press the search button.
• Choose the most relevant results from the list of search results.
• Our generator will automatically locate the source details and format them in the correct Harvard format. You can make further changes if required.
• Then either copy the formatted reference directly into your reference list by clicking the 'copy' button, or save it to your MyBib account for later.

MyBib supports the following for Harvard style:

🍏 What other versions of Harvard referencing exist?

There isn't "one true way" to do Harvard referencing, and many universities have their own slightly different guidelines for the style. Our generator can adapt to handle the following list of different Harvard styles:

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• When neither the author nor the page number is mentioned in the body of the sentence, you should include both the author’s last name and the page number in the parenthetical citation.

Colleges and universities need to create policies that foster inclusion for low-income students (Jack 24).

• When the author’s name is mentioned in the sentence, you should include only the page number in your parenthetical citation.

As Anthony Jack argues, colleges and universities need to create policies that foster inclusion for low-income students (24).

• If the source you are writing about does not have page numbers, or if you consulted an e-book version of the source, you should include only the author’s name in the parenthetical citation:

Colleges and universities need to create policies that foster inclusion for low-income students (Jack).

• If you mention the author in the body of the sentence and there is no page number in the source, you should not include a parenthetical citation.

As Anthony Jack argues, colleges and universities need to create policies that foster inclusion for low-income students.

• If you are referring to an entire work rather than a specific page, you do not need to include a page number.

In The Privileged Poor, Anthony Jack describes many obstacles that low-income students face at selective colleges and universities.

• If you are referring to a source that has no listed author, you should include the title (or a shortened version of the title) in your parenthetical citation.

Harvard College promises “to educate the citizens and citizen-leaders for our society” (“Mission, Vision, & History”).

• If you are referring to a source that has two authors, you should include both authors in your parenthetical citation.

The researchers tested whether an intervention during the first year of college could improve student well-being (Walton and Cohen 1448).

• If you refer to a source that has more than two authors, you should include the first author’s name followed by et al. ( Et al. is an abbreviation for et alia which means “and others” in Latin.) When you use et al. in a citation, you should not put it in italics.

The researchers studied more than 12,000 students who were interested in STEM fields (LaCosse et al. 8).

• If you refer to more than one source by the same author in your paper, you should include the title (or a shortened version of the title) in your parenthetical citation so that readers will know which source to look for in your Works Cited list. If you mention the author’s name in the sentence, you only need to include the title and page number. If you mention the author and title in the sentence, you only need to include the page number.

Colleges and universities need to create policies that foster inclusion for low-income students (Jack, Privileged Poor 24).

According to Anthony Jack, colleges and universities need to create policies that foster inclusion for low-income students ( Privileged Poor 24).

As Anthony Jack writes in Privileged Poor, colleges and universities need to create policies that foster inclusion for low-income students (24).

• If you want to credit multiple authors for making the same point, you can include them all in one parenthetical citation. 

Students who possess cultural capital, measured by proxies like involvement in literature, art, and classical music, tend to perform better in school (Bourdieu and Passeron; Dumais; Orr).

• If you refer to a source that includes line numbers in the margins, numbered paragraphs, numbered chapters, or numbered sections rather than page numbers, you should include the number in your parenthetical citation, along with “line,” “ch./ chs.,” or “sec./secs.”   You can include stable numbering like chapters even when there are no stable page numbers (as in an e-book). You should separate “line” or other designation from the work’s title or author’s name with a comma.  If the source does not include this type of numbering, you should not include it either.

We learn that when he went to the store to buy clothes for his son, “a frantic inspection of the boys’ department revealed no suits to fit the new-born Button” (Fitzgerald, ch.2).

• If you are citing a play, you should include the act and scene along with line numbers (for verse) or page numbers, followed by act and scene, (for prose).

Guildenstern tells Hamlet that “there has been much throwing about of brains” (Shakespeare, 2.2. 381-382).

Chris is in this mindset when he says, “a couple minutes, and your whole life changes, that’s it. It’s gone” (Nottage, 13; act 1, scene1).

• If you are referring to a video or audio recording that contains time stamps, you should include the time in your parenthetical citation to make it easy for your readers to find the part of the recording that you are citing.

In the Stranger Things official trailer, the audience knows that something unusual is going to happen from the moment the boys get on their bicycles to ride off into the night (0:16).

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Citation Styles Guide | Examples for All Major Styles

Published on June 24, 2022 by Jack Caulfield . Revised on November 7, 2022.

A citation style is a set of guidelines on how to cite sources in your academic writing . You always need a citation whenever you quote , paraphrase , or summarize a source to avoid plagiarism . How you present these citations depends on the style you follow. Scribbr’s citation generator can help!

Different styles are set by different universities, academic associations, and publishers, often published in an official handbook with in-depth instructions and examples.

There are many different citation styles, but they typically use one of three basic approaches: parenthetical citations , numerical citations, or note citations.

Parenthetical citations

• Chicago (Turabian) author-date

CSE name-year

Numerical citations

CSE citation-name or citation-sequence

Note citations

• Chicago (Turabian) notes and bibliography

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Table of contents

Types of citation: parenthetical, note, numerical, which citation style should i use, parenthetical citation styles, numerical citation styles, note citation styles, frequently asked questions about citation styles.

The clearest identifying characteristic of any citation style is how the citations in the text are presented. There are three main approaches:

• Parenthetical citations: You include identifying details of the source in parentheses in the text—usually the author’s last name and the publication date, plus a page number if relevant ( author-date ). Sometimes the publication date is omitted ( author-page ).
• Numerical citations: You include a number in brackets or in superscript, which corresponds to an entry in your numbered reference list.
• Note citations: You include a full citation in a footnote or endnote, which is indicated in the text with a superscript number or symbol.

Citation styles also differ in terms of how you format the reference list or bibliography entries themselves (e.g., capitalization, order of information, use of italics). And many style guides also provide guidance on more general issues like text formatting, punctuation, and numbers.

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In most cases, your university, department, or instructor will tell you which citation style you need to follow in your writing. If you’re not sure, it’s best to consult your institution’s guidelines or ask someone. If you’re submitting to a journal, they will usually require a specific style.

Sometimes, the choice of citation style may be left up to you. In those cases, you can base your decision on which citation styles are commonly used in your field. Try reading other articles from your discipline to see how they cite their sources, or consult the table below.

The American Anthropological Association (AAA) recommends citing your sources using Chicago author-date style . AAA style doesn’t have its own separate rules. This style is used in the field of anthropology.

APA Style is defined by the 7th edition of the Publication Manual of the American Psychological Association . It was designed for use in psychology, but today it’s widely used across various disciplines, especially in the social sciences.

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The citation style of the American Political Science Association (APSA) is used mainly in the field of political science.

The citation style of the American Sociological Association (ASA) is used primarily in the discipline of sociology.

Chicago author-date

Chicago author-date style is one of the two citation styles presented in the Chicago Manual of Style (17th edition). It’s used mainly in the sciences and social sciences.

The citation style of the Council of Science Editors (CSE) is used in various scientific disciplines. It includes multiple options for citing your sources, including the name-year system.

Harvard style is often used in the field of economics. It is also very widely used across disciplines in UK universities. There are various versions of Harvard style defined by different universities—it’s not a style with one definitive style guide.

Check out Scribbr’s Harvard Reference Generator

MLA style is the official style of the Modern Language Association, defined in the MLA Handbook (9th edition). It’s widely used across various humanities disciplines. Unlike most parenthetical citation styles, it’s author-page rather than author-date.

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The American Chemical Society (ACS) provides guidelines for a citation style using numbers in superscript or italics in the text, corresponding to entries in a numbered reference list at the end. It is used in chemistry.

The American Medical Association ( AMA ) provides guidelines for a numerical citation style using superscript numbers in the text, which correspond to entries in a numbered reference list. It is used in the field of medicine.

CSE style includes multiple options for citing your sources, including the citation-name and citation-sequence systems. Your references are listed alphabetically in the citation-name system; in the citation-sequence system, they appear in the order in which you cited them.

The Institute of Electrical and Electronics Engineers ( IEEE ) provides guidelines for citing your sources with IEEE in-text citations that consist of numbers enclosed in brackets, corresponding to entries in a numbered reference list. This style is used in various engineering and IT disciplines.

The National Library of Medicine (NLM) citation style is defined in Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers (2nd edition).

Vancouver style is also used in various medical disciplines. As with Harvard style, a lot of institutions and publications have their own versions of Vancouver—it doesn’t have one fixed style guide.

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The Bluebook: A Uniform System of Citation is the main style guide for legal citations in the US. It’s widely used in law, and also when legal materials need to be cited in other disciplines.

Chicago notes and bibliography

Chicago notes and bibliography is one of the two citation styles presented in the Chicago Manual of Style (17th edition). It’s used mainly in the humanities.

The Oxford University Standard for the Citation of Legal Authorities ( OSCOLA ) is the main legal citation style in the UK (similar to Bluebook for the US).

There are many different citation styles used across different academic disciplines, but they fall into three basic approaches to citation:

• Parenthetical citations : Including identifying details of the source in parentheses —usually the author’s last name and the publication date, plus a page number if available ( author-date ). The publication date is occasionally omitted ( author-page ).
• Numerical citations: Including a number in brackets or superscript, corresponding to an entry in your numbered reference list.
• Note citations: Including a full citation in a footnote or endnote , which is indicated in the text with a superscript number or symbol.

Check if your university or course guidelines specify which citation style to use. If the choice is left up to you, consider which style is most commonly used in your field.

• APA Style is the most popular citation style, widely used in the social and behavioral sciences.
• MLA style is the second most popular, used mainly in the humanities.
• Chicago notes and bibliography style is also popular in the humanities, especially history.
• Chicago author-date style tends to be used in the sciences.

Other more specialized styles exist for certain fields, such as Bluebook and OSCOLA for law.

The most important thing is to choose one style and use it consistently throughout your text.

A scientific citation style is a system of source citation that is used in scientific disciplines. Some commonly used scientific citation styles are:

• Chicago author-date , CSE , and Harvard , used across various sciences
• ACS , used in chemistry
• AMA , NLM , and Vancouver , used in medicine and related disciplines
• AAA , APA , and ASA , commonly used in the social sciences

APA format is widely used by professionals, researchers, and students in the social and behavioral sciences, including fields like education, psychology, and business.

Be sure to check the guidelines of your university or the journal you want to be published in to double-check which style you should be using.

MLA Style  is the second most used citation style (after APA ). It is mainly used by students and researchers in humanities fields such as literature, languages, and philosophy.

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Caulfield, J. (2022, November 07). Citation Styles Guide | Examples for All Major Styles. Scribbr. Retrieved September 16, 2024, from https://www.scribbr.com/citing-sources/citation-styles/

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Harvard (Author-Date)

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Guide notes

The following sections on this page form a basic guide to citing and referencing using the Harvard (author-date) system. For more detailed examples consult the  Cite Them Right Online Harvard Guide .

NOTE: Some of the examples on these pages have been invented by Library Services staff members.

Introduction to Harvard

The Harvard (author-date) system comprises two elements: an in-text citation and a bibliography at the end of the document. In the text of an assignment, ideas taken from other people are indicated by placing the author's surname and the date of publication in brackets. The bibliography at the end of the document then lists the references in alphabetical order by author's surname.

The Harvard examples in this guide are in the Cite Them Right Harvard style, as can be found in the Cite Them Right Online resource (please see below for details).

If you require information from these pages in another format, please email us. 

For further and detailed information on the Harvard referencing style, please also use the University-subscribed online resource from Bloomsbury Publishing, Cite Them Right Online, developed from the authoritative Cite Them Right by Pears and Shields (2022). 

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A citation is an abbreviated indication of the source(s) you have used in text. Use the author(s)' or editor(s)' family name and date of publication.

• One Author/Editor: (Stevens, 2013)
• Two Authors/Editors: (Banerjee and Watson, 2011)
• Three Authors/Editors: (Smith, Jones and Thomas, 2015)
• Four or more Authors/Editors: Cite the first name listed in the source followed by et al. For example, This was proved by Dym et al. (2009)...
• No Author/Editor: Use the title in italics; do not use 'anonymous' or anything similar, for example, It is maintained that medicine has greatly improved (Medicine in old age, 1985, p.74)...
• No Author and no Date: Use the title and 'no date'. For example, Thunderstorms have become increasingly common (Trends in atmospheric pressure, no date)... 

Citing multiple sources

If you want to refer to two or more sources at the same time, separate them with semi-colons and order them chronologically. If more than one work is published in the same year, then they should be listed alphabetically by author/editor.

For example:

• A number of different studies (Jamieson, 2011; Hollingworth, 2012; Hatfield, 2013; Rogers, 2015) suggested that...

Citing sources published in the same year by the same author

If you wish to cite an author who has published more than one item in the same year, use a lower case letter to distinguish between them. The letters should be included in the reference list.

For example, 

• Peate (2014a) discusses changes to the Nursing and Midwifery Council (NMC) Code of Conduct and the implications this has for nurses and midwives. In a later article Peate (2014b) criticises the NMC's decision to increase the registration fee  for nurses.

Page numbers

When you are directly quoting exact text, or paraphrasing a specific part of a text, then you should also give the relevant page number(s) in your in-text citation.  See the example above for “No author/Editor”.

The pagination for the whole item (for example with a journal article, or for a chapter in an edited book) should then be given as usual in the reference list at the end.

A reference gives the full details of the brief citation you have referred to in the text and is shown at the end of your essay. A reference will include authors, titles, editions, publisher details or journal details. 

Authors/ Editors

All authors'/ editors' names should be listed in your reference list (no matter how many there are)

Books 

• Author/Editor, initials(s). Year of publication (in round brackets) Title in italics. Edition (if not the first edition). Place of publication: Publisher. Series and volume number (where relevant). 
• One Author: Guy, J. (2001) The view across the river: Harriette Colenso and the Zulu struggle against imperialism. Charlottesville, Virginia: University Press of Virginia.
• Two Authors:  Banerjee, A. and Watson, T.F. (2011) Pickard's manual of operative dentistry . 9th edn. Oxford: Oxford University Press.
• Three or more Authors: List all the authors (no matter how many there are) and always separate the final two authors with and as shown below.
• Dym, C.L., Little, P., Orwin, E.J., and Spjut, R.E (2009) Engineering design: a project based introduction . 3rd edn. Hoboken, N.J: Wiley.

Edited Book

• Jordan, J. and Sharp, I. (eds) (2003) Josephine Butler and the prostitution campaigns : diseases of the body politic. Vol. 1: The moral reclaimability of prostitutes . London: Routledge. 

Chapter in a Book

• Sparkes, V. (2010) 'Function of the spine', in Everett, T.and Kell, C. (eds) Human movement: an introductory text . 6th edn. Edinburgh: Churchill Livingston Elsevier, pp.191-209.
• Hislop, V. (2014) The Sunrise. Available at http://www.amazon.co.uk/kindlestore (downloaded:17 June 2015).

Journal (Print) 

• Author, Initial(s). (Year) Title of article (in single quotation marks), Title of Journal (in italics), Volume (unbracketed) and, where applicable, Number issue/part number (in brackets), page numbers.
• Knapik, J.J., Cosio-Lima, L.M. and Reynolds, K.L. (2015) 'Efficacy of functional movement and screening for predicting injuries in coast guard cadets', The Journal of Strength and Conditioning Research , 29 (5), pp. 1157-1162.

Journal (Electronic)

• Same information as above, but if doi available include at the end of the reference.
• Wildman, S. (2009) 'Nursing and the issue of 'party' in the Church of England: the case of the Lichfield Diocesan Nursing Association', Nursing Inquiry , 16, pp. 94-102. doi:1111/j.1440-1800.2009.00441.x.
• Web pages with an author: Snow, D (2015) How did so many soldiers survive the trenches? Available at: http://www.bbc.co.uk/guides/z3kgjxs (Accessed: 18 July 2015)
• Author as an organisation: BBC News (2014) 'Lights out' end of the day of WW1 centenary commemorations . Available at: http://www.bbc.co.uk/guides/z3kgjxshttp://www.bbc.co.uk/news/uk-28632223 (Accessed: 18 July 2015)
• No dates: BBC History (no date) Duke of Wellington (1769-1852) . Available at: http://www.bbc.co.uk/history/historicfigures/wellingtondukeof.shtml (Accessed: 18 July 2015)

If you require any further help with referencing our Academic Skills Centre will be able to assist you with any help, advice or support you need. 

How to list your references

In the Harvard (author-date) System the list of references is arranged alphabetically by author's surname, year (and letter, if necessary) and is placed at the end of the work.

A reference list is the detailed list of references that are cited in your work.   A bibliography is a detailed list of references cited in your work, plus the background readings or other material that you may have read, but not actually cited.  Different courses may require just a reference list, just a bibliography, or even both.  It is better to check with your tutor first.

Sample Reference List

Banerjee, A. and Watson, T.F. (2011) Pickard’s manual of operative dentistry. 9th edn. Oxford: Oxford University Press. 

Davidson, A. (2013) ‘The Saudi Marathon Man’, The New Yorker, 16 April. Available at: http://www.newyorker.com/news/daily-comment/the-saudi-marathon-man (Accessed: 22 June 2015).

Guy, J. (2001) The view across the river: Harriette Colenso and the Zulu struggle against imperialism. Charlottesville, Virginia: University Press of Virginia.

Hislop, V. (2014) The sunrise. Available at http://www.amazon.co.uk/kindlestore (Downloaded: 17 June 2015).

Homer (1997) The Iliad. Translated by J. Davies. Introduction and notes by D. Wright. London: Dover Publications.

Knapik, J. J., Cosio-Lima, L. M., and Reynolds, K. L. (2015) ‘Efficacy of functional movement screening for predicting injuries in coast guard cadets’, The Journal of Strength and Conditioning Research, 29 (5), pp. 1157-1162. EDUC 1028: E-learning. Available at: http://intranet.bir.ac.uk (Accessed: 25 June 2015).

Lucas, G. (2004) The wonders of the Universe. 2nd edn. Edited by Frederick Jones, James Smith and Tony Bradley. London: Smiths.

Medicine in old age (1985) 2nd edn. London: British Medical Association.

‘Rush (band)’ (2015) Wikipedia. Available at https://en.wikipedia.org/?title=Rush_(band) (Accessed: 18 June 2015).

Sample Bibliography

Centres for Disease Control and Prevention (1994) Epi Info (Version 6) [Computer program]. Available at http://www.cdcp.com/download.html (Accessed: 23 June 2015).

Gregory, S. (1970) English military intervention in the Dutch revolt. B.A. Thesis. University of Birmingham. Available at: http://findit.bham.ac.uk/ (Accessed: 18 June 2015).

Jones, B., (1997) Methods in tumour research. National Agency for Tumour Research, volume. 7.

Peart, N. (1976) Something for Nothing. Toronto: Toronto Sound Studios.

Rush (2015) [Bishopthorpe Social Club. 29 March].

The University of Birmingham (2010) The University of Birmingham experience. Available at: https://www.youtube.com/watch?v=YLxV5L6IaFA (Accessed: 18 June 2015).

Harvard Legal Referencing

Students who use Harvard referencing and need to cite law cases should use the following guidance:

Cite Them Right Online Law reports (cases) (Harvard) ; see the section on 'Law reports (cases) from 2002 with neutral citations' which describes neutral citations and gives relevant examples.

British and Irish Legal Information Institute (BAILII) neutral citation example   https://www.bailii.org/uk/cases/UKSC/2012/18.html .

This is recommended for Social Work students in particular.

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Harvard Style & Format: A 5-Minute Guide + Samples

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The Harvard referencing style is a widely used system for citing and referencing sources in academic writing. It provides a consistent and standardized format for acknowledging the works of others that you have used in your research.

Struggling to remember tricky peculiarities of Harvard style referencing and formatting? Don’t worry, you have come across a helpful material. In this article, you will find the basics of Harvard style formatting which would be useful for your academic progress. This easy but detailed Harvard style guide contains all format requirements for a paper and some structural tips. Besides, it covers general rules on how to cite your sources properly in your text. Feel free to use these guidelines for your academic endeavors. Let us go through details of Harvard style referencing and formatting together!  

Reference Harvard Style: Basics

Harvard style is an author-date system of referencing. It’s similar to an  APA paper format  in terms of general formatting of pages and text. But this style follows its own rules for bibliography and in-text citations formatting. Harvard style is typically used for essays in such academic disciplines:  

• Behavioral Sciences
• Philosophy.

But this doesn’t mean you can’t use this paper format in other areas of study. The general rule is to put references to your sources in round brackets. Specify author’s name and publication year. These references should come after your quotes (direct or indirect) in the end of a respective sentence or paragraph. Full details about all sources you have used should be provided at the end of your work. This section should be named ‘Reference List’. Buy coursework or any other type of research paper that will be referenced for you by our experts. 

Harvard Format: General Requirements

Let us explore some general rules for Harvard formatting:

• Font: Times New Roman or Arial
• Size: 12 pt
• Text: double-spaced and left-aligned
• Indent: first line of a paragraph has indent of 0.5 inch
• Margins: 1 inch from each side

A Harvard style citation  must have a Title page, header (or running head), headings and Reference list. We will take a closer look at formatting each section down below.  

Harvard Style Title Page

What are the requirements for a Harvard style cover page? Title page is otherwise known as front page. This is the first page of your paper to be observed by your reader, i.e. your teacher first of all. Therefore, it is highly important to format it properly. Formatting rules for Harvard Title page:  

• Paper title is fully capitalised and centered. Should be placed at approximately 33% of your page counting from its top.
• Your name as an author, centered and placed at the middle of your page.
• Course name at approximately 66% of the page.
• Instructor’s name on a new line.
• University’s name.
• Submission date.

See the sample of a Harvard title page down below.

Formatting a Header in Harvard

An important detail: you are required to use a header in  Harvard referencing  format. This section is repeatedly shown on all pages of your paper except the title page. You have to configure it once. Then, headers will get automatically added on each new page. Headers in Harvard referencing format contains such information:  

• Page number, right aligned
• Shortened title of your paper, not capitalized, right-aligned, to the left of page number.

It is important to use shortened title because there is not too much space in any header. Also, another requirement is putting exactly 5 spaces between your title and a page number in headers.

Harvard Style Heading

Now let us explore some rules of using subheadings in Harvard style, in detail. Typically there are 2 levels of section headings recommended for use in such papers. They have different formatting. This helps to tell one from another, without using different font sizes for them.

• Level-1 subheadings for a bigger section. They must be centered, capitalized, but at the same time not indented, not bold, not underscored, not italicized.
• Level-2 subheading for any subsection, typically 1-2 paragraphs. They must be capitalized, left-aligned, not indented. Besides, they should be italicized.

The plain text of any paragraph should go on a new line after subheadings in Harvard style, be it Level-1 or Level-2 subheading.

Harvard Reference List

Listing all sources you have used for your research in a proper order is a core element of Harvard style. Reference list should be the last part of your paper but absolutely not the least. Now let us explore some critical rules for a reference list formatting. The Harvard-style reference list section has its own subtitle, namely ‘Reference List’. Similarly to a Level-1 subheading, it should be capitalized and centered. The rest of your content in this section goes from a new line after your title. No extra empty lines are to be added. Your references in this list are numbered and sorted alphabetically. No lines are indented. Each item in this list starts from a new line. Below we will describe a format for referencing in detail.  

Harvard Style Bibliography

Sometimes your professor or instructor might ask you to create a Bibliography section instead of a common Reference list. So what is the Harvard Bibliography format? Harvard style bibliography includes not only those sources you have cited in your text but also. It also includes materials which you have read to get ideas for your research and to better understand the context of a selected problem. So, such section would contain more items than a Reference list. Apart of that, the general Harvard Bibliography format is the same:  

• Heading, ‘Bibliography’ is formatted the same way as a Level-1 subheading
• Sources are put into alphabetical order
• List is double-spaced
• Lines do not have any indent
• Each item of this list starts from a new line.

Harvard Style Citations: General Rules

Another crucial element of Harvard style is referring to your sources inside your essay. That’s why you should know how to cite in Harvard style. Keep in mind that the main purpose of a proper format is to ensure your paper is plagiarizm-free. Sometimes, you should cite ideas from books, magazines or newspapers. But you can only refer to such ideas, otherwise it will be considered a form of plagiarism. Below we will show you how to cite in Harvard style, providing general information about published sources. So let us proceed and learn more about shortened quotes and full references.  

How to Quote in Harvard Style

Here are the rules of Harvard format in-text citation:

• Add them in parentheses, usually at the end of quotes.
• Put an author’s last name and a publication year into round brackets, add page number if needed.

• When quoting a web page, give a paragraph number instead of a page since many websites don’t divide text into pages.
• Direct citation requires quotation marks and a page number is mandatory in parenthesis
• If you have mentioned an author’s name in your quote, do not include it into brackets, just leave a year and a page numbers there.

• Sometimes you might need to quote two different sources at once. In such case include both into the same parenthesis and divide them by a semicolon.

Creating References in Harvard Style

And this is how you should be referencing in Harvard style, providing full descriptions of the sources you have used. Let us start with the general book format:

• Last name of the author followed by comma and initials
• If there are multiple authors, their names are separated with comma, except the last one which must be separated by ‘&’
• Year of publication follows, without a comma
• A full title of the book is given, italicized
• Publisher name
• City and country where this book was published are the last to be provided.

Here are several Harvarvard referencing rules for other source types:

• Refer to an edited book by putting ‘(ed.)’ or ‘(eds)’ after the editor name(s)
• If a book was translated, add ‘trans. I Lastname’
• Refer to an article in any book or journal by adding an article name in quotation marks but not italicized
• Refer to a website by adding ‘viewed’ and the date when you’ve opened it, followed by the URL in angle brackets.

Bottom Line

In this article we have explored the Harvard referencing guide, one of the most popular ones for students in the UK. Feel free to use these tips and proceed to writing a winning essay with flawless formatting! Just keep in mind the following key concepts of the Harvard style:

• Title or cover page
• Headers and their contents
• Subheadings of two levels with different formatting
• Reference list with full-detailed description of sources
• In-text citations with lots of different forms for various quote types.

In conclusion, consider our  custom term paper writing solution if you lack the time or got into writer's block.

If you have questions, please visit our FAQ section or contact our expert writers. They will gladly help you create references in line with all requirements. On top of that, our writers are highly experienced in academic writing and can assist you with any type of formatting.  

FAQ About Harvard Format

1. is harvard reference style used in colleges.

The Harvard style can be used in colleges as well as in other educational institutions and even by professional researchers. While it is relatively popular in many countries for research paper referencing, Harvard style is most widespread in universities of the UK nowadays. Other styles (APA, MLA and Chicago) dominate the US educational institutions.

2. What is the difference between Harvard and Oxford referencing styles?

The Harvard style format is a typical example of an author-date system as it requires using author’s names and publication dates for in-text referencing. You should create a complete reference list as a separate section in the end of your research paper. The Oxford style on the contrary uses numbered footnotes for citing sources used on your page. In-text citations on this page consist just from numbers of respective notes.  

Emma Flores knows all about formatting standards. She shares with StudyCrumb readers tips on creating academic papers that will meet high-quality standards.

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Harvard referencing sample paper

Published March 8, 2021. Updated August 15, 2021.

Formatting notes for the entire paper

Make sure that the same line spacing, margins, font type, and font size are applied to all pages in your paper. This helps keep your paper’s appearance consistent and professional.

Since Harvard referencing is a style that varies across institutions, make sure that you always check with your instructor about their formatting preferences. If no guidance is provided, here are some basic directions to follow:

• Page margins: 5 cm margins on the left, right, top, and bottom.
• Font type and size: Use a clear and readable font, like Times New Roman or Arial, in 12 pt. font.
• Line spacing:  Double-spaced.
• Running head: In the top right corner of every page, include a shortened version of your title and the page number. Use the “header” area of your document to create your running head.

For help writing your essay, research paper , or other project, check out these writing tips .

Cover page formatting

If you’re required to include a cover page, you will include the following information in this order:

• Running head: Place this in the top right corner. It includes a shortened version of your paper title. The page number is to the right of it.
• Full title of the paper: This goes about halfway down the page. The title should be in all caps.
• Your full name: Place on the line after your title.
• Class name: Place this about 4-5 lines after your full name. Include the class number, if available.
• Your instructor’s name: Place this after the class name. Look at your syllabus to see how they prefer to be presented. It could or could not include their title (“professor”) or degree (e.g., Ph.D., M.A., etc.).
• Institution name : Place this after the instructor’s name.
• Paper due date : Write your date out in full.

Body of the paper formatting

As you begin writing the introduction, body paragraphs, and conclusion of your Harvard referencing paper, these are formatting tips to keep in mind.

• Page headings : Center a page title. Do not bold, italicize, or underline it.
• Body: Left-aligned.
• Paragraphs: Indent the first line using the tab key.
• In-text citations:  Include these citations immediately after the quoted or paraphrased material. For more information, visit this page on Harvard in-text citations .

Reference list

The reference list includes detailed information about every source you cited in your paper (via an in-text citation). A  reference list appears at the end of your paper on its own page. If you’re citing sources, the Chegg Writing Harvard referencing generator is a helpful resource.

Reference list entries

Your citations will appear in alphabetical order, based on the first letter included in each entry. Each of your sources will be cited differently, depending on many factors. Here are a few guides to help you learn more:

• How to cite a book
• How to cite a website
• How to cite an article
• How to cite an image
• How to cite a PDF
• How to cite a YouTube video
• How to cite a film or movie
• How to cite items with no author
• How to cite items with more than one author

Reference list page formatting

When formatting your reference list, first make sure to check with your particular institution’s style guide. Here are some general formatting guidelines:

• Start your reference list at the very end of your paper and on a new page.
• The page’s title, “Reference list,” will appear centered at the top of the page.
• Organize your references in alphabetical order, using the first letters of each reference.
• If you have more than one source by the same author, they should be listed chronologically by year of publication.
• Each reference is single-spaced and is flush with the left margin (no hanging indents).
• There should be a line between each reference.
• All authors should be listed in the reference.

Sample Harvard referencing style paper

Below are images of a Harvard referencing sample paper. Click here to see the full paper .

Harvard Referencing Style Guides

Harvard Referencing : Citing Sources | Direct Quotes | Et al. | In-text citations | Multiple authors | No authors | Page numbers

Harvard Referencing Generator : Article | Book | Image | Interview | Journal | Movie | PDF | Textbook | Website | YouTube

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Harvard Style Guide: Journal article ePublication (ahead of print)

• Introduction
• Harvard Tutorial
• In-text citations
• Book with one author
• Book with two or three authors
• Book with four or more authors
• Book with a corporate author
• Book with editor
• Chapter in an edited book
• Translated book
• Translated ancient texts
• Print journal article, one author
• Print journal article, two or three authors
• Print journal article, four or more authors
• eJournal article
• Journal article ePublication (ahead of print)
• Secondary sources
• Generative AI
• Images or photographs
• Lectures/ presentations
• Film/ television
• YouTube Film or Talk
• Music/ audio
• Encyclopaedia and dictionaries
• Email communication
• Conferences
• Official publications
• Book reviews
• Case studies
• Group or individual assignments
• Legal Cases (Law Reports)
• No date of publication
• Personal communications
• Repository item
• Citing same author, multiple works, same year

Back to Academic Integrity guide

Journal article epublication (ahead of print)

Reference : Author(s) Last name, Initials. (Year) ‘Article title’, Journal Title (published online ahead of print Day Month). Available at: DOI/URL (Accessed Day Month Year).

Example : Hawke, J., Wadsworth, S., & DeFries, J. (2006) ‘Genetic influences on reading difficulties in boys and girls: the Colorado twin study’, Dyslexia (published online ahead of print 24 September). Available at: http://www3.interscience.wiley.com/cgi-bin/fulltext/112098736/PDFSTART  (Accessed 10 October 2006).

In-Text-Citation :

• Author(s) Last name (Year)
• (Author(s) Last name, Year)
• Hawke, Wadsworth and DeFries (2006) argue ….
• Others have shown (Hawke, Wadsworth and DeFries, 2006).... 

Note: In the absence of clear guidelines from the title "Cite Them Right", this is how UCD Library have interpreted online advice on referencing ahead of print journal publications.

Still unsure what in-text citation and referencing mean? Check  here .

Still unsure why you need to reference all this information? Check  here .

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London Metropolitan University Library Guides

Referencing, academic integrity and avoiding plagiarism: referencing, what is referencing, what referencing style should i use, how do i reference, guidance for each referencing style, referencing faqs.

• Cite Them Right Online
• Academic integrity and misconduct
• Avoiding plagiarism
• Zotero: reference management software
• Help and support

Learn to reference with Cite Them Right

Cite Them Right   is an online platform that can help you with your referencing.  It provides clear guidance on how to reference with lots of examples.  

Referencing is a way of acknowledging that you have used the ideas and written material belonging to another author. It shows that you have undertaken an appropriate literature search and that you have carried out appropriate reading in order to show your knowledge, understanding and analysis of your topic.

By referencing your sources you are demonstrating to your tutors the breadth of your research and reinforcing your own arguments. Using a wide range of sources is excellent academic practice and can improve your marks.

All information, ideas and quotations from anything you have consulted in order to write an assignment at University must be correctly referenced. Correct referencing enables your tutors and assessors to access your source material.

Particular referencing styles are preferred by particular academic disciplines because they work better with the kind of texts that are most commonly used in that discipline.

The University supports four main referencing styles, Harvard, MHRA, APA and OSCOLA. 

With a few exceptions, most London Met courses use Harvard.

• Courses in the School of Art, Architecture and Design:  MHRA or Harvard
• Courses in the School of Computing and Digital Media:  Harvard or IEEE (optional style)
• Courses in the School of Human Sciences : Harvard or Vancouver (optional style)
• Law : OSCOLA
• Music courses in the School of Computing and Digital Media : MHRA or Harvard
• Psychology : APA

Find guidance for each of the styles below.

• a ' Learn how to reference anything ' tutorial
• video guides
• citation and referencing examples for a huge range of sources- follow the examples to create your own

Log into Cite Them Right via your institution and search for London Metropolitan University to log in off campus.

• They can advise you on avoiding plagiarism and referencing correctly.
• Vancouver (optional style)
• IEEE (optional style)

Most of the courses at London Met use Harvard, with a few exceptions.

• Harvard Referencing- quick guide 2024 Harvard referencing can vary in format. This guide provides examples based on the style in the book Cite Them Right.
• Cite Them Right - Harvard basics
• Cite Them Right - citing different sources using Harvard
• Cite Them Right - MHRA 4th basics
• Cite Them Right - citing different sources using MHRA 4th
• Official MHRA Style Guide
• MHRA referencing tutorial by Cardiff University
• MHRA referencing tutorial by the University of Leeds
• APA style and grammar guidelines
• Cite Them Right - APA basics
• Cite Them Right - citing different sources using APA
• APA referencing video tutorials
• OSCOLA Quick Reference Guide
• OSCOLA Referencing Complete Guide
• Cite Them Right - OSCOLA basics
• Cite Them Right - citing different sources using OSCOLA
• OSCOLA Referencing A-Z Examples Created by Cardiff University Library Service.
• OSCOLA Referencing Online Tutorial Created by Cardiff University Library Service.
• OSCOLA Homepage From the Oxford Faculty of Law.
• European Case Law Identifier
• Cite Them Right - Vancouver basics
• Cite Them Right - citing different sources using Vancouver
• Guide to using the Vancouver style (Imperial College)
• IEEE Referencing Guide (IEEE)
• Cite Them Right - IEEE basics
• Cite Them Right - citing different sources using IEEE
• IEEE guide (University of York)
• Next: Cite Them Right Online >>

Timelike-bounded $dS_4$ holography from a solvable sector of the $T^2$ deformation

• Silverstein, Eva
• Torroba, Gonzalo

Recent research has leveraged the tractability of $T\bar T$ style deformations to formulate timelike-bounded patches of three-dimensional bulk spacetimes including $dS_3$. This proceeds by breaking the problem into two parts: a solvable theory that captures the most entropic energy bands, and a tuning algorithm to treat additional effects and fine structure. We point out that the method extends readily to higher dimensions, and does not require factorization of the full $T^2$ operator (the higher dimensional analogue of $T\bar T$ defined in [1]). Focusing on $dS_4$, we first define a solvable theory at finite $N$ via a restricted $T^2$ deformation of the $CFT_3$ on ${S}^2\times \mathbb{R}$, in which $T$ is replaced by the form it would take in symmetric homogeneous states, containing only diagonal energy density $E/V$ and pressure (-$dE/dV$) components. This defines a finite-N solvable sector of $dS_4/\text{deformed-CFT}_3$, capturing the radial geometry and count of the entropically dominant energy band, reproducing the Gibbons-Hawking entropy as a state count. To accurately capture local bulk excitations of $dS_4$ including gravitons, we build a deformation algorithm in direct analogy to the case of $dS_3$ with bulk matter recently proposed in [2]. This starts with an infinitesimal stint of the solvable deformation as a regulator. The full microscopic theory is built by adding renormalized versions of $T^2$ and other operators at each step, defined by matching to bulk local calculations when they apply, including an uplift from $AdS_4/CFT_3$ to $dS_4$ (as is available in hyperbolic compactifications of M theory). The details of the bulk-local algorithm depend on the choice of boundary conditions; we summarize the status of these in GR and beyond, illustrating our method for the case of the cylindrical Dirichlet condition which can be UV completed by our finite quantum theory.

• High Energy Physics - Theory

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GPT-fabricated scientific papers on Google Scholar: Key features, spread, and implications for preempting evidence manipulation

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Academic journals, archives, and repositories are seeing an increasing number of questionable research papers clearly produced using generative AI. They are often created with widely available, general-purpose AI applications, most likely ChatGPT, and mimic scientific writing. Google Scholar easily locates and lists these questionable papers alongside reputable, quality-controlled research. Our analysis of a selection of questionable GPT-fabricated scientific papers found in Google Scholar shows that many are about applied, often controversial topics susceptible to disinformation: the environment, health, and computing. The resulting enhanced potential for malicious manipulation of society’s evidence base, particularly in politically divisive domains, is a growing concern.

Swedish School of Library and Information Science, University of Borås, Sweden

Department of Arts and Cultural Sciences, Lund University, Sweden

Division of Environmental Communication, Swedish University of Agricultural Sciences, Sweden

Research Questions

• Where are questionable publications produced with generative pre-trained transformers (GPTs) that can be found via Google Scholar published or deposited?
• What are the main characteristics of these publications in relation to predominant subject categories?
• How are these publications spread in the research infrastructure for scholarly communication?
• How is the role of the scholarly communication infrastructure challenged in maintaining public trust in science and evidence through inappropriate use of generative AI?

research note Summary

• A sample of scientific papers with signs of GPT-use found on Google Scholar was retrieved, downloaded, and analyzed using a combination of qualitative coding and descriptive statistics. All papers contained at least one of two common phrases returned by conversational agents that use large language models (LLM) like OpenAI’s ChatGPT. Google Search was then used to determine the extent to which copies of questionable, GPT-fabricated papers were available in various repositories, archives, citation databases, and social media platforms.
• Roughly two-thirds of the retrieved papers were found to have been produced, at least in part, through undisclosed, potentially deceptive use of GPT. The majority (57%) of these questionable papers dealt with policy-relevant subjects (i.e., environment, health, computing), susceptible to influence operations. Most were available in several copies on different domains (e.g., social media, archives, and repositories).
• Two main risks arise from the increasingly common use of GPT to (mass-)produce fake, scientific publications. First, the abundance of fabricated “studies” seeping into all areas of the research infrastructure threatens to overwhelm the scholarly communication system and jeopardize the integrity of the scientific record. A second risk lies in the increased possibility that convincingly scientific-looking content was in fact deceitfully created with AI tools and is also optimized to be retrieved by publicly available academic search engines, particularly Google Scholar. However small, this possibility and awareness of it risks undermining the basis for trust in scientific knowledge and poses serious societal risks.

Implications

The use of ChatGPT to generate text for academic papers has raised concerns about research integrity. Discussion of this phenomenon is ongoing in editorials, commentaries, opinion pieces, and on social media (Bom, 2023; Stokel-Walker, 2024; Thorp, 2023). There are now several lists of papers suspected of GPT misuse, and new papers are constantly being added. 1 See for example Academ-AI, https://www.academ-ai.info/ , and Retraction Watch, https://retractionwatch.com/papers-and-peer-reviews-with-evidence-of-chatgpt-writing/ . While many legitimate uses of GPT for research and academic writing exist (Huang & Tan, 2023; Kitamura, 2023; Lund et al., 2023), its undeclared use—beyond proofreading—has potentially far-reaching implications for both science and society, but especially for their relationship. It, therefore, seems important to extend the discussion to one of the most accessible and well-known intermediaries between science, but also certain types of misinformation, and the public, namely Google Scholar, also in response to the legitimate concerns that the discussion of generative AI and misinformation needs to be more nuanced and empirically substantiated  (Simon et al., 2023).

Google Scholar, https://scholar.google.com , is an easy-to-use academic search engine. It is available for free, and its index is extensive (Gusenbauer & Haddaway, 2020). It is also often touted as a credible source for academic literature and even recommended in library guides, by media and information literacy initiatives, and fact checkers (Tripodi et al., 2023). However, Google Scholar lacks the transparency and adherence to standards that usually characterize citation databases. Instead, Google Scholar uses automated crawlers, like Google’s web search engine (Martín-Martín et al., 2021), and the inclusion criteria are based on primarily technical standards, allowing any individual author—with or without scientific affiliation—to upload papers to be indexed (Google Scholar Help, n.d.). It has been shown that Google Scholar is susceptible to manipulation through citation exploits (Antkare, 2020) and by providing access to fake scientific papers (Dadkhah et al., 2017). A large part of Google Scholar’s index consists of publications from established scientific journals or other forms of quality-controlled, scholarly literature. However, the index also contains a large amount of gray literature, including student papers, working papers, reports, preprint servers, and academic networking sites, as well as material from so-called “questionable” academic journals, including paper mills. The search interface does not offer the possibility to filter the results meaningfully by material type, publication status, or form of quality control, such as limiting the search to peer-reviewed material.

To understand the occurrence of ChatGPT (co-)authored work in Google Scholar’s index, we scraped it for publications, including one of two common ChatGPT responses (see Appendix A) that we encountered on social media and in media reports (DeGeurin, 2024). The results of our descriptive statistical analyses showed that around 62% did not declare the use of GPTs. Most of these GPT-fabricated papers were found in non-indexed journals and working papers, but some cases included research published in mainstream scientific journals and conference proceedings. 2 Indexed journals mean scholarly journals indexed by abstract and citation databases such as Scopus and Web of Science, where the indexation implies journals with high scientific quality. Non-indexed journals are journals that fall outside of this indexation. More than half (57%) of these GPT-fabricated papers concerned policy-relevant subject areas susceptible to influence operations. To avoid increasing the visibility of these publications, we abstained from referencing them in this research note. However, we have made the data available in the Harvard Dataverse repository.

The publications were related to three issue areas—health (14.5%), environment (19.5%) and computing (23%)—with key terms such “healthcare,” “COVID-19,” or “infection”for health-related papers, and “analysis,” “sustainable,” and “global” for environment-related papers. In several cases, the papers had titles that strung together general keywords and buzzwords, thus alluding to very broad and current research. These terms included “biology,” “telehealth,” “climate policy,” “diversity,” and “disrupting,” to name just a few.  While the study’s scope and design did not include a detailed analysis of which parts of the articles included fabricated text, our dataset did contain the surrounding sentences for each occurrence of the suspicious phrases that formed the basis for our search and subsequent selection. Based on that, we can say that the phrases occurred in most sections typically found in scientific publications, including the literature review, methods, conceptual and theoretical frameworks, background, motivation or societal relevance, and even discussion. This was confirmed during the joint coding, where we read and discussed all articles. It became clear that not just the text related to the telltale phrases was created by GPT, but that almost all articles in our sample of questionable articles likely contained traces of GPT-fabricated text everywhere.

Evidence hacking and backfiring effects

Generative pre-trained transformers (GPTs) can be used to produce texts that mimic scientific writing. These texts, when made available online—as we demonstrate—leak into the databases of academic search engines and other parts of the research infrastructure for scholarly communication. This development exacerbates problems that were already present with less sophisticated text generators (Antkare, 2020; Cabanac & Labbé, 2021). Yet, the public release of ChatGPT in 2022, together with the way Google Scholar works, has increased the likelihood of lay people (e.g., media, politicians, patients, students) coming across questionable (or even entirely GPT-fabricated) papers and other problematic research findings. Previous research has emphasized that the ability to determine the value and status of scientific publications for lay people is at stake when misleading articles are passed off as reputable (Haider & Åström, 2017) and that systematic literature reviews risk being compromised (Dadkhah et al., 2017). It has also been highlighted that Google Scholar, in particular, can be and has been exploited for manipulating the evidence base for politically charged issues and to fuel conspiracy narratives (Tripodi et al., 2023). Both concerns are likely to be magnified in the future, increasing the risk of what we suggest calling evidence hacking —the strategic and coordinated malicious manipulation of society’s evidence base.

The authority of quality-controlled research as evidence to support legislation, policy, politics, and other forms of decision-making is undermined by the presence of undeclared GPT-fabricated content in publications professing to be scientific. Due to the large number of archives, repositories, mirror sites, and shadow libraries to which they spread, there is a clear risk that GPT-fabricated, questionable papers will reach audiences even after a possible retraction. There are considerable technical difficulties involved in identifying and tracing computer-fabricated papers (Cabanac & Labbé, 2021; Dadkhah et al., 2023; Jones, 2024), not to mention preventing and curbing their spread and uptake.

However, as the rise of the so-called anti-vaxx movement during the COVID-19 pandemic and the ongoing obstruction and denial of climate change show, retracting erroneous publications often fuels conspiracies and increases the following of these movements rather than stopping them. To illustrate this mechanism, climate deniers frequently question established scientific consensus by pointing to other, supposedly scientific, studies that support their claims. Usually, these are poorly executed, not peer-reviewed, based on obsolete data, or even fraudulent (Dunlap & Brulle, 2020). A similar strategy is successful in the alternative epistemic world of the global anti-vaccination movement (Carrion, 2018) and the persistence of flawed and questionable publications in the scientific record already poses significant problems for health research, policy, and lawmakers, and thus for society as a whole (Littell et al., 2024). Considering that a person’s support for “doing your own research” is associated with increased mistrust in scientific institutions (Chinn & Hasell, 2023), it will be of utmost importance to anticipate and consider such backfiring effects already when designing a technical solution, when suggesting industry or legal regulation, and in the planning of educational measures.

Recommendations

Solutions should be based on simultaneous considerations of technical, educational, and regulatory approaches, as well as incentives, including social ones, across the entire research infrastructure. Paying attention to how these approaches and incentives relate to each other can help identify points and mechanisms for disruption. Recognizing fraudulent academic papers must happen alongside understanding how they reach their audiences and what reasons there might be for some of these papers successfully “sticking around.” A possible way to mitigate some of the risks associated with GPT-fabricated scholarly texts finding their way into academic search engine results would be to provide filtering options for facets such as indexed journals, gray literature, peer-review, and similar on the interface of publicly available academic search engines. Furthermore, evaluation tools for indexed journals 3 Such as LiU Journal CheckUp, https://ep.liu.se/JournalCheckup/default.aspx?lang=eng . could be integrated into the graphical user interfaces and the crawlers of these academic search engines. To enable accountability, it is important that the index (database) of such a search engine is populated according to criteria that are transparent, open to scrutiny, and appropriate to the workings of  science and other forms of academic research. Moreover, considering that Google Scholar has no real competitor, there is a strong case for establishing a freely accessible, non-specialized academic search engine that is not run for commercial reasons but for reasons of public interest. Such measures, together with educational initiatives aimed particularly at policymakers, science communicators, journalists, and other media workers, will be crucial to reducing the possibilities for and effects of malicious manipulation or evidence hacking. It is important not to present this as a technical problem that exists only because of AI text generators but to relate it to the wider concerns in which it is embedded. These range from a largely dysfunctional scholarly publishing system (Haider & Åström, 2017) and academia’s “publish or perish” paradigm to Google’s near-monopoly and ideological battles over the control of information and ultimately knowledge. Any intervention is likely to have systemic effects; these effects need to be considered and assessed in advance and, ideally, followed up on.

Our study focused on a selection of papers that were easily recognizable as fraudulent. We used this relatively small sample as a magnifying glass to examine, delineate, and understand a problem that goes beyond the scope of the sample itself, which however points towards larger concerns that require further investigation. The work of ongoing whistleblowing initiatives 4 Such as Academ-AI, https://www.academ-ai.info/ , and Retraction Watch, https://retractionwatch.com/papers-and-peer-reviews-with-evidence-of-chatgpt-writing/ . , recent media reports of journal closures (Subbaraman, 2024), or GPT-related changes in word use and writing style (Cabanac et al., 2021; Stokel-Walker, 2024) suggest that we only see the tip of the iceberg. There are already more sophisticated cases (Dadkhah et al., 2023) as well as cases involving fabricated images (Gu et al., 2022). Our analysis shows that questionable and potentially manipulative GPT-fabricated papers permeate the research infrastructure and are likely to become a widespread phenomenon. Our findings underline that the risk of fake scientific papers being used to maliciously manipulate evidence (see Dadkhah et al., 2017) must be taken seriously. Manipulation may involve undeclared automatic summaries of texts, inclusion in literature reviews, explicit scientific claims, or the concealment of errors in studies so that they are difficult to detect in peer review. However, the mere possibility of these things happening is a significant risk in its own right that can be strategically exploited and will have ramifications for trust in and perception of science. Society’s methods of evaluating sources and the foundations of media and information literacy are under threat and public trust in science is at risk of further erosion, with far-reaching consequences for society in dealing with information disorders. To address this multifaceted problem, we first need to understand why it exists and proliferates.

Finding 1: 139 GPT-fabricated, questionable papers were found and listed as regular results on the Google Scholar results page. Non-indexed journals dominate.

Most questionable papers we found were in non-indexed journals or were working papers, but we did also find some in established journals, publications, conferences, and repositories. We found a total of 139 papers with a suspected deceptive use of ChatGPT or similar LLM applications (see Table 1). Out of these, 19 were in indexed journals, 89 were in non-indexed journals, 19 were student papers found in university databases, and 12 were working papers (mostly in preprint databases). Table 1 divides these papers into categories. Health and environment papers made up around 34% (47) of the sample. Of these, 66% were present in non-indexed journals.

Finding 2: GPT-fabricated, questionable papers are disseminated online, permeating the research infrastructure for scholarly communication, often in multiple copies. Applied topics with practical implications dominate.

The 20 papers concerning health-related issues are distributed across 20 unique domains, accounting for 46 URLs. The 27 papers dealing with environmental issues can be found across 26 unique domains, accounting for 56 URLs.  Most of the identified papers exist in multiple copies and have already spread to several archives, repositories, and social media. It would be difficult, or impossible, to remove them from the scientific record.

As apparent from Table 2, GPT-fabricated, questionable papers are seeping into most parts of the online research infrastructure for scholarly communication. Platforms on which identified papers have appeared include ResearchGate, ORCiD, Journal of Population Therapeutics and Clinical Pharmacology (JPTCP), Easychair, Frontiers, the Institute of Electrical and Electronics Engineer (IEEE), and X/Twitter. Thus, even if they are retracted from their original source, it will prove very difficult to track, remove, or even just mark them up on other platforms. Moreover, unless regulated, Google Scholar will enable their continued and most likely unlabeled discoverability.

A word rain visualization (Centre for Digital Humanities Uppsala, 2023), which combines word prominences through TF-IDF 5 Term frequency–inverse document frequency , a method for measuring the significance of a word in a document compared to its frequency across all documents in a collection. scores with semantic similarity of the full texts of our sample of GPT-generated articles that fall into the “Environment” and “Health” categories, reflects the two categories in question. However, as can be seen in Figure 1, it also reveals overlap and sub-areas. The y-axis shows word prominences through word positions and font sizes, while the x-axis indicates semantic similarity. In addition to a certain amount of overlap, this reveals sub-areas, which are best described as two distinct events within the word rain. The event on the left bundles terms related to the development and management of health and healthcare with “challenges,” “impact,” and “potential of artificial intelligence”emerging as semantically related terms. Terms related to research infrastructures, environmental, epistemic, and technological concepts are arranged further down in the same event (e.g., “system,” “climate,” “understanding,” “knowledge,” “learning,” “education,” “sustainable”). A second distinct event further to the right bundles terms associated with fish farming and aquatic medicinal plants, highlighting the presence of an aquaculture cluster.  Here, the prominence of groups of terms such as “used,” “model,” “-based,” and “traditional” suggests the presence of applied research on these topics. The two events making up the word rain visualization, are linked by a less dominant but overlapping cluster of terms related to “energy” and “water.”

The bar chart of the terms in the paper subset (see Figure 2) complements the word rain visualization by depicting the most prominent terms in the full texts along the y-axis. Here, word prominences across health and environment papers are arranged descendingly, where values outside parentheses are TF-IDF values (relative frequencies) and values inside parentheses are raw term frequencies (absolute frequencies).

Finding 3: Google Scholar presents results from quality-controlled and non-controlled citation databases on the same interface, providing unfiltered access to GPT-fabricated questionable papers.

Google Scholar’s central position in the publicly accessible scholarly communication infrastructure, as well as its lack of standards, transparency, and accountability in terms of inclusion criteria, has potentially serious implications for public trust in science. This is likely to exacerbate the already-known potential to exploit Google Scholar for evidence hacking (Tripodi et al., 2023) and will have implications for any attempts to retract or remove fraudulent papers from their original publication venues. Any solution must consider the entirety of the research infrastructure for scholarly communication and the interplay of different actors, interests, and incentives.

We searched and scraped Google Scholar using the Python library Scholarly (Cholewiak et al., 2023) for papers that included specific phrases known to be common responses from ChatGPT and similar applications with the same underlying model (GPT3.5 or GPT4): “as of my last knowledge update” and/or “I don’t have access to real-time data” (see Appendix A). This facilitated the identification of papers that likely used generative AI to produce text, resulting in 227 retrieved papers. The papers’ bibliographic information was automatically added to a spreadsheet and downloaded into Zotero. 6 An open-source reference manager, https://zotero.org .

We employed multiple coding (Barbour, 2001) to classify the papers based on their content. First, we jointly assessed whether the paper was suspected of fraudulent use of ChatGPT (or similar) based on how the text was integrated into the papers and whether the paper was presented as original research output or the AI tool’s role was acknowledged. Second, in analyzing the content of the papers, we continued the multiple coding by classifying the fraudulent papers into four categories identified during an initial round of analysis—health, environment, computing, and others—and then determining which subjects were most affected by this issue (see Table 1). Out of the 227 retrieved papers, 88 papers were written with legitimate and/or declared use of GPTs (i.e., false positives, which were excluded from further analysis), and 139 papers were written with undeclared and/or fraudulent use (i.e., true positives, which were included in further analysis). The multiple coding was conducted jointly by all authors of the present article, who collaboratively coded and cross-checked each other’s interpretation of the data simultaneously in a shared spreadsheet file. This was done to single out coding discrepancies and settle coding disagreements, which in turn ensured methodological thoroughness and analytical consensus (see Barbour, 2001). Redoing the category coding later based on our established coding schedule, we achieved an intercoder reliability (Cohen’s kappa) of 0.806 after eradicating obvious differences.

The ranking algorithm of Google Scholar prioritizes highly cited and older publications (Martín-Martín et al., 2016). Therefore, the position of the articles on the search engine results pages was not particularly informative, considering the relatively small number of results in combination with the recency of the publications. Only the query “as of my last knowledge update” had more than two search engine result pages. On those, questionable articles with undeclared use of GPTs were evenly distributed across all result pages (min: 4, max: 9, mode: 8), with the proportion of undeclared use being slightly higher on average on later search result pages.

To understand how the papers making fraudulent use of generative AI were disseminated online, we programmatically searched for the paper titles (with exact string matching) in Google Search from our local IP address (see Appendix B) using the googlesearch – python library(Vikramaditya, 2020). We manually verified each search result to filter out false positives—results that were not related to the paper—and then compiled the most prominent URLs by field. This enabled the identification of other platforms through which the papers had been spread. We did not, however, investigate whether copies had spread into SciHub or other shadow libraries, or if they were referenced in Wikipedia.

We used descriptive statistics to count the prevalence of the number of GPT-fabricated papers across topics and venues and top domains by subject. The pandas software library for the Python programming language (The pandas development team, 2024) was used for this part of the analysis. Based on the multiple coding, paper occurrences were counted in relation to their categories, divided into indexed journals, non-indexed journals, student papers, and working papers. The schemes, subdomains, and subdirectories of the URL strings were filtered out while top-level domains and second-level domains were kept, which led to normalizing domain names. This, in turn, allowed the counting of domain frequencies in the environment and health categories. To distinguish word prominences and meanings in the environment and health-related GPT-fabricated questionable papers, a semantically-aware word cloud visualization was produced through the use of a word rain (Centre for Digital Humanities Uppsala, 2023) for full-text versions of the papers. Font size and y-axis positions indicate word prominences through TF-IDF scores for the environment and health papers (also visualized in a separate bar chart with raw term frequencies in parentheses), and words are positioned along the x-axis to reflect semantic similarity (Skeppstedt et al., 2024), with an English Word2vec skip gram model space (Fares et al., 2017). An English stop word list was used, along with a manually produced list including terms such as “https,” “volume,” or “years.”

• Artificial Intelligence
• / Search engines

Cite this Essay

Haider, J., Söderström, K. R., Ekström, B., & Rödl, M. (2024). GPT-fabricated scientific papers on Google Scholar: Key features, spread, and implications for preempting evidence manipulation. Harvard Kennedy School (HKS) Misinformation Review . https://doi.org/10.37016/mr-2020-156

• / Appendix B

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This research has been supported by Mistra, the Swedish Foundation for Strategic Environmental Research, through the research program Mistra Environmental Communication (Haider, Ekström, Rödl) and the Marcus and Amalia Wallenberg Foundation [2020.0004] (Söderström).

Competing Interests

The authors declare no competing interests.

The research described in this article was carried out under Swedish legislation. According to the relevant EU and Swedish legislation (2003:460) on the ethical review of research involving humans (“Ethical Review Act”), the research reported on here is not subject to authorization by the Swedish Ethical Review Authority (“etikprövningsmyndigheten”) (SRC, 2017).

This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided that the original author and source are properly credited.

Data Availability

All data needed to replicate this study are available at the Harvard Dataverse: https://doi.org/10.7910/DVN/WUVD8X

Acknowledgements

The authors wish to thank two anonymous reviewers for their valuable comments on the article manuscript as well as the editorial group of Harvard Kennedy School (HKS) Misinformation Review for their thoughtful feedback and input.