APA استشهاد

Lack, D. (1968). Ecological adaptations for breeding in birds.

استشهاد بنمط شيكاغو

Lack, David. Ecological Adaptations for Breeding in Birds. Methuen & Co., London, 1968.

MLA استشهاد

Lack, David. Ecological Adaptations for Breeding in Birds. 1968.