Dyfyniad APA

Gelfand, H., & Walker, C. J. (2002). Mastering APA Style: Student's workbook and training guide. American Psychological Association.

Dyfyniad Arddull Chicago

Gelfand, Harold, and Charles J. Walker. Mastering APA Style: Student's Workbook and Training Guide. Washington, D.C: American Psychological Association, 2002.

Dyfyniad MLA

Gelfand, Harold, and Charles J. Walker. Mastering APA Style: Student's Workbook and Training Guide. American Psychological Association, 2002.

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