Citation Style Guide

Harvard Referencing — Complete Guide

The author–date system used across UK and Commonwealth universities — particularly in humanities, social sciences, law, and business. No single "official" manual — follow your institution's variant.

In this guide
Harvard overview Harvard variants In-text citations Reference list rules Journal article Book Chapter in edited book Website Report Secondary sources (citing a citation) Common mistakes

Harvard referencing — overview

Harvard referencing is an author–date system: in-text citations consist of the author's surname and the year of publication, placed in parentheses. A full reference list at the end of the paper provides the complete details of every source cited.

Harvard is the most widely used referencing style in UK universities and is common across the Commonwealth. Unlike APA, MLA, or Chicago — which are produced by specific professional associations with official style manuals — "Harvard" is a generic name for a family of author–date styles. There is no single authoritative Harvard manual.

⚠️ Important: Different institutions — and sometimes different departments within the same institution — use slightly different Harvard variants. Always follow your institution's specific Harvard guide. This guide follows the most widely accepted UK conventions.

Harvard variants — what differs?

The most common variations between Harvard styles concern:

The core structure — Author (Year) in-text; Author, Year, Title, Publisher in reference list — is consistent across all variants.

In-text citations

Paraphrase — standard

Example
Retrieval practice has been shown to significantly improve long-term memory retention (Roediger and Butler, 2011).

Narrative citation

Example
Roediger and Butler (2011) demonstrated that retrieval practice significantly improves long-term memory retention.

Direct quotation — include page number

Example
"Retrieval practice produces large gains in long-term retention" (Roediger and Butler, 2011, p. 153).

Multiple authors

Same author, same year

Example
(Smith, 2020a) … (Smith, 2020b) — label in both in-text citation and reference list entry.

No author — use title

Example
(Academic Integrity Policy, 2022)

No date

Example
(Smith, no date) or (Smith, n.d.) — check your institution's preference.

Reference list rules

Journal article

Format
Author, A. and Author, B. (Year) 'Title of article', Journal Name, Volume(Issue), pp. xx–xx. doi: xxxxx or Available at: URL (Accessed: Day Month Year).
Roediger, H.L. and Butler, A.C. (2011) 'The critical role of retrieval practice in long-term retention', Trends in Cognitive Sciences, 15(1), pp. 20–27. doi: 10.1016/j.tics.2010.09.003.

Book

Format
Author, A. (Year) Title of Book. Edition (if not first). Place of Publication: Publisher.
Brown, P.C., Roediger, H.L. and McDaniel, M.A. (2014) Make It Stick: The Science of Successful Learning. Cambridge, MA: Harvard University Press.

Chapter in an edited book

Format
Author, A. (Year) 'Title of chapter', in Editor, A. and Editor, B. (eds) Title of Book. Place: Publisher, pp. xx–xx.
Said, E. (1995) 'Intellectual exile: expatriates and marginals', in Ashcroft, B., Griffiths, G. and Tiffin, H. (eds) The Post-Colonial Studies Reader. London: Routledge, pp. 221–225.

Website

Format
Author/Organisation (Year) Title of page. Available at: URL (Accessed: Day Month Year).
World Health Organization (2023) Mental health action plan 2013–2030. Available at: https://www.who.int/publications/i/item/9789240031029 (Accessed: 3 January 2024).

Report

Format
Organisation (Year) Title of Report. Report number (if applicable). Place: Publisher. Available at: URL (Accessed: Day Month Year).
Office for National Statistics (2022) Domestic abuse in England and Wales overview: November 2022. Newport: ONS. Available at: https://www.ons.gov.uk/peoplepopulationandcommunity/crimeandjustice/bulletins/domesticabuseinenglandandwalesoverview/november2022 (Accessed: 10 February 2024).

Secondary sources — citing a citation

A secondary source is when you cite information from Source A that you found quoted or referenced in Source B — and you have not read Source A yourself.

Best practice

Always try to find and read the original (primary) source. Citing secondary sources is acceptable when the original is genuinely inaccessible, but it should be the exception, not the rule.

If you must use a secondary citation, cite both sources — the original and the source where you found it:

"Experimental evidence suggests that… (Ebbinghaus, 1885, cited in Roediger and Butler, 2011)."

In the reference list, cite only Roediger and Butler (2011) — the source you actually read. Do not add Ebbinghaus to your reference list if you have not read it.

Common Harvard mistakes

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