APA aipamena

Pianka, E. R. (2000). Evolutionary ecology 6th ed (6th ed.). Benjamin/Cummings.

Chicago Style aipamena

Pianka, Eric R. Evolutionary Ecology 6th Ed. 6th ed. San Francisco, CA: Benjamin/Cummings, 2000.

MLA aipamena

Pianka, Eric R. Evolutionary Ecology 6th Ed. 6th ed. Benjamin/Cummings, 2000.