Gelfand, H., & Walker, C. J. (2002). Mastering APA Style: Instructor's resource guide. American Psychological Association.
Chicago Style (17. basım) AtıfGelfand, Harold, ve Charles J. Walker. Mastering APA Style: Instructor's Resource Guide. Washington, D.C: American Psychological Association, 2002.
MLA (9th ed.) AtıfGelfand, Harold, ve Charles J. Walker. Mastering APA Style: Instructor's Resource Guide. American Psychological Association, 2002.
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