APA (7th ed.) Citation

Skutch, A. F. (1973). The life of the hummingbird: Illustr. by Arthur B. Singer. Crown Publ.

Chicago Style (17th ed.) Citation

Skutch, Alexander F. The Life of the Hummingbird: Illustr. by Arthur B. Singer. New York: Crown Publ, 1973.

MLA (9th ed.) Citation

Skutch, Alexander F. The Life of the Hummingbird: Illustr. by Arthur B. Singer. Crown Publ, 1973.