Cita APA (7a ed.)

Pianka, E. R. (1988). Evolutionary ecology (4th ed.). Harper & Row.

Cita Chicago Style (17a ed.)

Pianka, Eric R. Evolutionary Ecology. 4th ed. New York [etc.]: Harper & Row, 1988.

Cita MLA (9a ed.)

Pianka, Eric R. Evolutionary Ecology. 4th ed. Harper & Row, 1988.