APA (7th ed.) Citation

Pianka, E. R. (1978). Evolutionary ecology (2. ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Pianka, Eric R. Evolutionary Ecology. 2. ed. New York: Harper & Row, 1978.

MLA (9th ed.) Citation

Pianka, Eric R. Evolutionary Ecology. 2. ed. Harper & Row, 1978.