Παραπομπή σε μορφή APA (7η εκδ.)

Kempenaers, B., & Sheldon, B. (1996). Why do male birds not discriminate between their own and extra-pair offspring?

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kempenaers, B., και B. Sheldon. Why Do Male Birds Not Discriminate Between Their Own and Extra-pair Offspring? 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kempenaers, B., και B. Sheldon. Why Do Male Birds Not Discriminate Between Their Own and Extra-pair Offspring? 1996.