APA-referens (7:e uppl.)

Coons, J. E., Brennan, P. M., & Witte, J. (1999). By nature equal: The anatomy of a Western insight. Princeton University Press.

Chicago-referens (17:e uppl.)

Coons, John E., Patrick M. Brennan, och John Witte. By Nature Equal: The Anatomy of a Western Insight. Princeton, N.J.: Princeton University Press, 1999.

MLA-referens (9:e uppl.)

Coons, John E., et al. By Nature Equal: The Anatomy of a Western Insight. Princeton University Press, 1999.