APA (7th ed.) Zitazioa

Williams, G. C. (1992). Natural selection: Domains, levels, and challenges. Oxford university press.

Chicago Style (17th ed.) Zitazioa

Williams, George C. Natural Selection: Domains, Levels, and Challenges. New York: Oxford university press, 1992.

MLA (9th ed.) Zitazioa

Williams, George C. Natural Selection: Domains, Levels, and Challenges. Oxford university press, 1992.