Παραπομπή σε μορφή APA (7η εκδ.)

Klopfer, P. H., & Hailman, J. P. (1972). Function and evolution of behavior: An historical sample from the pens of ethologists. Addison-Wesley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Klopfer, Peter H., και Jack P. Hailman. Function and Evolution of Behavior: An Historical Sample from the Pens of Ethologists. Reading, Mass: Addison-Wesley, 1972.

Παραπομπή σε μορφή MLA (8th εκδ.)

Klopfer, Peter H., και Jack P. Hailman. Function and Evolution of Behavior: An Historical Sample from the Pens of Ethologists. Addison-Wesley, 1972.