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APA (American Psychological Association) 6th is an author-date referencing style where you have an in-text citation and a related entry in a reference list at the end of your document.

APA 6th - book

Include edition details for a numbered edition eg, 2nd ed. Place the edition details after the book title, but not in italics. Use Rev. ed. for revised editions.

For electronic books include the DOI number (Digital Object Identifier) if available. The format for a doi is either: doi:10.1080/1057356030207 OR http://dx.doi.org/10.1080/1057356030207  

If there is no DOI use the web address. 

If there is no year of publication use the abbreviation (n.d.) for no date.


Reference list

Add a reference list at the end of your essay, citing all sources used in the body of your writing. The reference list should be in alphabetical order by the first author's surname.

One author

Two to seven authors

Eight or more authors

Group as author

Unknown author

Chapter/section

Entry in a dictionary/encyclopaedia/wikipedia

Edited book

eBook reader

In-text citation

When you use another person’s ideas or words in your text include the author’s name and publication date.

If you use the author’s name as part of a sentence, include the date of publication in brackets.

One author

Two authors

Three to five authors

Six or more authors

Group as author

Unknown author

Quoting

Direct quotes of less than 40 words require quotation marks and the page number/s.

  • Research suggests that "avoidance is essentially a static approach to conflict" (Northouse, 2015, p. 246).
  • Northouse (2015) stated that "personality traits such as intelligence, confidence, charisma, determination, sociability and integrity are essential to being an effective leader" (pp. 137-138).
  • ... the term "Vein" (2002) is defined as "narrow tubes that carry used blood from all parts of your body back to the heart" (p. 350).
  • It is noted that the "resistance to pyrethroids seems to be the most widespread" (World Health Organization, 2012, p. 13).
  • The World Health Organization (2012) states that "insecticide resistance is widespread: it is now reported in nearly two thirds of countries with ongoing malaria transmission" (p. 13).

See also: more on quoting, including long quotes ...  Multiple works by the same author, Similar information from multiple works, One source quoted in another


This material is based on the Publication manual of the American Psychological Association (2010), the APA style guide to electronic references (2012) and the APA style blog. For further information, please consult the manuals directly.

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