APA (7th ed.) Citation

Waal, F. B. M. d. (2005). Our inner ape: A leading primatologist explains why we are who we are. Riverhead Books.

Chicago Style (17th ed.) Citation

Waal, F. B. M. de. Our Inner Ape: A Leading Primatologist Explains Why We Are Who We Are. New York: Riverhead Books, 2005.

MLA (9th ed.) Citation

Waal, F. B. M. de. Our Inner Ape: A Leading Primatologist Explains Why We Are Who We Are. Riverhead Books, 2005.