APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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