Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

Williams, George C. Natural Selection: Domains, Levels and Challenges. Nueva York: Oxford University, 1992.

Citatione MLA (9a ed.)

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