APA-referens (7:e uppl.)
(2001). Publication manual of the American psychological association (5th ed.). American Psychological Association.
Chicago-referens (17:e uppl.)
Publication Manual of the American Psychological Association. 5th ed. Washington,DC: American Psychological Association, 2001.
MLA-referens (9:e uppl.)
Publication Manual of the American Psychological Association. 5th ed. American Psychological Association, 2001.
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