APA (7th ed.) Citation

Hefner, P. J. (1993). The human factor: Evolution, culture, and religion. Fortress Press.

Chicago Style (17th ed.) Citation

Hefner, Philip J. The Human Factor: Evolution, Culture, and Religion. Minneapolis: Fortress Press, 1993.

MLA (9th ed.) Citation

Hefner, Philip J. The Human Factor: Evolution, Culture, and Religion. Fortress Press, 1993.