APA (7th ed.) Citation

Johnsgard, P. A. (1988). North American owls: Biology and natural history. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Johnsgard, Paul A. North American Owls: Biology and Natural History. Washington: Smithsonian Institution Press, 1988.

MLA (9th ed.) Citation

Johnsgard, Paul A. North American Owls: Biology and Natural History. Smithsonian Institution Press, 1988.

Warning: These citations may not always be 100% accurate.