In-text citations are included in your writing to acknowledge the sources of information you have used to support your ideas. They briefly identify a work by its author and year of publication and direct readers to a reference list entry with the full details of the source. In-text citations are required for both paraphrasing and quoting. Additional locator information, such as a page or paragraph number, is also included in some instances.
In brief, this page explains how to:
In-text citations can be presented in two ways:
Information prominent - The author(s) and year are in brackets.
It could be argued that mental flexibility is a key factor in well-being (Palladino & Wade, 2010).
Author prominent - The author(s) is part of the sentence, and the year is in brackets.
Palladino and Wade (2010) argue that mental well-being is linked with flexible thinking.
The following examples demonstrate how to create in-text citations based on the number of authors and other relevant factors.
The format of the authors in the in-text citation changes according to the number of authors for the work.
| Author type | Information prominent | Author prominent |
|---|---|---|
| One author | (Smith, 2020). | According to Smith (2020)… |
| Two authors | (Smith & Jones, 2020). | Smith and Jones (2020) highlighted this… |
| Three or more authors | (Thomas et al., 2018). | Thomas et al. (2018) recommends… |
| Organisation as author | (World Health Organization, 2018). | World Health Organization (2018) state… |
| Organisation with optional abbreviation |
First citation: (World Health Organization [WHO], 2018). Later citations: (WHO, 2018). |
First citation: World Health Organization (WHO, 2018) have… Later citations: WHO (2018) mentions… |
Sometimes you might want to include more than one source in a single in-text citation. This is useful when you are showing that many authors agree on the same idea (called synthesising).
Multiple sources example
There is an established consensus that the current trend towards a warming climate is directly linked to human activity (Hegerl, 1996; Levitus et al., 2017; NASA, n.d.; Robinson et al., 2014).
If you cite multiple works by same author (or authors) published in the same year, add a letter after the year (a, b, c) to tell the works apart.
In-text citation
(Clarke & Fawcett, 2014b).
Clarke and Fawcett (2014a) suggest that…
Reference list
Clarke, P. N., & Fawcett, J. (2014a). Life as a mentor. Nursing Science Quarterly, 27(3), 213-215. https://doi.org/10.1177/0894318414534492
Clarke, P. N., & Fawcett, J. (2014b). Life as a nurse researcher. Nursing Science Quarterly, 27(1), 37-41. https://doi.org/10.1177/0894318413509708
If multiple works with three or more authors shorten to the same citation, write out as many author names as needed to tell the sources apart and use et al. for the remaining authors. If the only difference is the last author, write all author names in every citation.
In-text citation example
(Smith, Jones, McDonald et al., 2019)
(Smith, Jones, Black et al., 2019)
OR
Smith, Jones, McDonald et al. (2019)
Smith, Jones, Black et al. (2019)
If you use sources where the first authors have the same surname, but different initials, you need to include the initials in your in-text citations. This helps readers tell the authors apart and find the correct entry in your reference list. This rule applies even if the works were published in different years.
Examples
(B. Johnson, 2017). OR According to B. Johnson (2017)…
(M. Johnson et al., 2016). OR M. Johnson et al. (2016) state…
Academic content such as books and journal articles will often contain a lot of citations. You need to credit the original author (primary source) when:
When you cite a secondary source:
In-text citation
“We are part of the land, it is part of us” (Philippe, 2008, as cited in Maldonado et al., 2013, p. 610).
OR
Philippe (2008, as cited in Maldonado et al., 2013) states “we are part of the land, it is part of us” (p. 610).
Reference list
Maldonado, J. K., Shearer, C., Bronen, R., Peterson, K., & Lazrus, H. (2013). The impact of climate change on tribal communities in the US: Displacement, relocation, and human rights. Climatic Change, 120(3), 601-614. https://doi.org/10.1007/s10584-013-0746-z
Still confused about who to reference? Watch this short video for further explanation and examples: https://youtu.be/tkwboeng0WY
Quoting means copying the exact words from another source into your writing. For more information, check out Integrating sources: Quoting for examples and tips.
Quoting example - with page numbers
“Automatic thinking is thought that is nonconscious, unintentional, involuntary, and effortless” (Aronson et al., 2021, p. 75).
OR
Aronson et al. (2021) define automatic thinking as “thought that is nonconscious, unintentional, involuntary, and effortless” (p. 75).
Quoting example - without page numbers
Lee (2015) states that, “in APA style, double quotation marks are used to enclose quoted material” (para. 1).
OR
“In APA style, double quotation marks are used to enclose quoted material” (Lee, 2015, para. 1).
If the quote you want to use is more than 40 words, format it as a block quotation:
Block quotation example
In-text citations are important in academic writing, drawing the parallel between the author’s work and the sources which support it:
The function of any citation-signaller is to alert the reader to some kind of association between the citing text and the cited text. Citation-signallers may additionally, by using page references or chapter numbers, single out a particular part of the text as especially relevant. (Langham, 2005, p. 361)
When you quote from a source, you should include a page number in your in-text citation. This helps readers find the exact part of the source you are referring to. If the source does not have page numbers, use another type of identifier, such as: a paragraph number, heading or section name, or timestamp.
| Identifier | Example |
|---|---|
| Page number | (Thomas et al., 2018, p. 23). |
| Paragraph number | (World Health Organization, 2025, para. 3). |
| Heading or section name | (Australian Bureau of Statistics, 2024, Education and Employment section). |
|
Heading or section name with paragraph number |
(American Psychiatric Association, 2022, Pica section, para. 1). (Brosnan, 2020, Linking Cooperation section, para. 3). |
|
Timestamp (Audiovisual material) Use the format: HH:MM:SS |
(Sandberg, 2019, 1:55:51). (Leaver, 2012, 1:30). |
| Slide number | (Richardson, 2015, slide 9). |