American Psychological Association. (2010). Publication manual of the American Psychological Association (6th ed.). American Psychological Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)American Psychological Association. Publication Manual of the American Psychological Association. 6th ed. Washington, DC: American Psychological Association, 2010.
Παραπομπή σε μορφή MLA (9th εκδ.)American Psychological Association. Publication Manual of the American Psychological Association. 6th ed. American Psychological Association, 2010.
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