Gaya APA

Hawkins, D, R, 1. (2013). Power vs force : the hidden determinannts of human behavior (Cet.1). Carlsbad: Hay House.

Gaya MLA

Hawkins, David, R.,, 1927-2012. "Power vs force : the hidden determinannts of human behavior". Cet.1 Carlsbad: Hay House, 2013. Text.