Gaya APA

Robbins, S, P. et al (2011). Contemporary Human Behavior Theory : A Critical Perspective for Social Work Ed. 3'rd (3). Boston: Allyn & Bacon.

Gaya MLA

Robbins, Susan, P.. et al. "Contemporary Human Behavior Theory : A Critical Perspective for Social Work Ed. 3'rd". 3 Boston: Allyn & Bacon, 2011. Text.