APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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