Published on 14 February 2020 by Jack Caulfield. Revised on 15 September 2023.
Referencing is an important part of academic writing. It tells your readers what sources you’ve used and how to find them.
Harvard is the most common referencing style used in UK universities. In Harvard style, the author and year are cited in-text, and full details of the source are given in a reference list.
In-text citation | Referencing is an essential academic skill (Pears and Shields, 2019). |
Reference list entry | Pears, R. and Shields, G. (2019) Cite them right: The essential referencing guide. 11th edn. London: MacMillan. |
As with in-text citations, up to three authors should be listed; when there are four or more, list only the first author followed by ‘et al.’:
Number of authors | Reference example |
---|---|
1 author | Davis, V. (2019) … |
2 authors | Davis, V. and Barrett, M. (2019) … |
3 authors | Davis, V., Barrett, M. and McLachlan, F. (2019) … |
4+ authors | Davis, V. et al. (2019) … |
Reference list entries vary according to source type, since different information is relevant for different sources. Formats and examples for the most commonly used source types are given below.
Sometimes you won’t have all the information you need for a reference. This section covers what to do when a source lacks a publication date or named author.
When a source doesn’t have a clear publication date – for example, a constantly updated reference source like Wikipedia or an obscure historical document which can’t be accurately dated – you can replace it with the words ‘no date’:
In-text citation | (Scribbr, no date) |
Reference list entry | Scribbr (no date) How to structure a dissertation. Available at: https://www.scribbr.co.uk/category/thesis-dissertation/ (Accessed: 14 February 2020). |
Note that when you do this with an online source, you should still include an access date, as in the example.
When a source lacks a clearly identified author, there’s often an appropriate corporate source – the organisation responsible for the source – whom you can credit as author instead, as in the Google and Wikipedia examples above.
When that’s not the case, you can just replace it with the title of the source in both the in-text citation and the reference list:
In-text citation | (‘Divest’, no date) |
Reference list entry | ‘Divest’ (no date) Available at: https://www.merriam-webster.com/dictionary/divest (Accessed: 27 January 2020). |
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Harvard referencing uses an author–date system. Sources are cited by the author’s last name and the publication year in brackets. Each Harvard in-text citation corresponds to an entry in the alphabetised reference list at the end of the paper.
Vancouver referencing uses a numerical system. Sources are cited by a number in parentheses or superscript. Each number corresponds to a full reference at the end of the paper.
Harvard style | Vancouver style | |
---|---|---|
In-text citation | Each referencing style has different rules (Pears and Shields, 2019). | Each referencing style has different rules (1). |
Reference list | Pears, R. and Shields, G. (2019). Cite them right: The essential referencing guide. 11th edn. London: MacMillan. | 1. Pears R, Shields G. Cite them right: The essential referencing guide. 11th ed. London: MacMillan; 2019. |
A Harvard in-text citation should appear in brackets every time you quote, paraphrase, or refer to information from a source.
The citation can appear immediately after the quotation or paraphrase, or at the end of the sentence. If you’re quoting, place the citation outside of the quotation marks but before any other punctuation like a comma or full stop.
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-text citation | Reference list | |
---|---|---|
1 author | (Smith, 2014) | Smith, T. (2014) … |
2 authors | (Smith and Jones, 2014) | Smith, T. and Jones, F. (2014) … |
3 authors | (Smith, Jones and Davies, 2014) | Smith, T., Jones, F. and Davies, S. (2014) … |
4+ authors | (Smith et al., 2014) | Smith, T. et al. (2014) … |
Though the terms are sometimes used interchangeably, there is a difference in meaning:
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.