Dyfyniad APA

Weiten, W., & Halpern, D. F. (2004). Psychology: Themes and variations (6th ed.). Thomson/Wadsworth.

Dyfyniad Arddull Chicago

Weiten, Wayne, and Diane F. Halpern. Psychology: Themes and Variations. 6th ed. Australia ; Belmont, CA: Thomson/Wadsworth, 2004.

Dyfyniad MLA

Weiten, Wayne, and Diane F. Halpern. Psychology: Themes and Variations. 6th ed. Thomson/Wadsworth, 2004.

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