APA (7th ed.) Citation

Kaufman, K., Bowers, R., Bowers, N., & Hassler, L. (2005). Kaufman field guide to birds of North America. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Kaufman, Kenn, Rick Bowers, Nora Bowers, and Lynn Hassler. Kaufman Field Guide to Birds of North America. New York: Houghton Mifflin, 2005.

MLA (8th ed.) Citation

Kaufman, Kenn, et al. Kaufman Field Guide to Birds of North America. Houghton Mifflin, 2005.

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