APA (7e ed.) Bronvermelding

Waal, F. d., Macedo, S., & Ober, J. (2009). Primates and Philosophers: How Morality Evolved (Course Book.). Princeton University Press.

Chicago (17e ed.) Bronvermelding

Waal, Frans de, Stephen Macedo, en Josiah Ober. Primates and Philosophers: How Morality Evolved. Course Book. Princeton, N.J.: Princeton University Press, 2009.

MLA (8e ed.) Bronvermelding

Waal, Frans de, et al. Primates and Philosophers: How Morality Evolved. Course Book. Princeton University Press, 2009.