APA (7th ed.) Citation

Pianka, E. R. (1994). Evolutionary ecology (5th ed.). Harper Collins.

Chicago Style (17th ed.) Citation

Pianka, Eric R. Evolutionary Ecology. 5th ed. New York: Harper Collins, 1994.

MLA (9th ed.) Citation

Pianka, Eric R. Evolutionary Ecology. 5th ed. Harper Collins, 1994.