American Psychological Association. (2020). Publication manual of the American Psychological Association: The official guide to APA style (7. edition.). American Psychological Association.
Lua i Stíl Chicago (17ú heag.)American Psychological Association. Publication Manual of the American Psychological Association: The Official Guide to APA Style. 7. edition. Washington, DC: American Psychological Association, 2020.
Lua MLA (8ú heag.)American Psychological Association. Publication Manual of the American Psychological Association: The Official Guide to APA Style. 7. edition. American Psychological Association, 2020.
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