APA (7th ed.) Citation

Sterry, P., & Small, B. E. (2009). Birds of Western North America: A photographic guide. Princeton University Press.

Chicago Style (17th ed.) Citation

Sterry, Paul, and Brian E. Small. Birds of Western North America: A Photographic Guide. Princeton: Princeton University Press, 2009.

MLA (9th ed.) Citation

Sterry, Paul, and Brian E. Small. Birds of Western North America: A Photographic Guide. Princeton University Press, 2009.