Gaya APA

D., N, R. (2001). Three Psychologies ; Perspectives From Freud, Skinner, And Rogers (Trawas) . California: Books/Cole Publishing Company.

Gaya MLA

D., Nye, Robert. "Three Psychologies ; Perspectives From Freud, Skinner, And Rogers (Trawas)". California: Books/Cole Publishing Company, 2001. Text.