Παραπομπή σε μορφή APA (7η εκδ.)

Waal, F. B. M. d. (1996). Good natured: The origins of right and wrong in humans and other animals. Harvard University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Waal, F. B. M. de. Good Natured: The Origins of Right and Wrong in Humans and Other Animals. Cambridge,MA: Harvard University Press, 1996.

Παραπομπή σε μορφή MLA (8th εκδ.)

Waal, F. B. M. de. Good Natured: The Origins of Right and Wrong in Humans and Other Animals. Harvard University Press, 1996.