APA (7th ed.) Citation

Ryan, C., & Jethá, C. (2010). Sex at dawn: The prehistoric origins of modern sexuality (1. ed.). Harper.

Chicago Style (17th ed.) Citation

Ryan, Christopher, and Cacilda Jethá. Sex at Dawn: The Prehistoric Origins of Modern Sexuality. 1. ed. New York: Harper, 2010.

MLA (9th ed.) Citation

Ryan, Christopher, and Cacilda Jethá. Sex at Dawn: The Prehistoric Origins of Modern Sexuality. 1. ed. Harper, 2010.