APA (7th ed.) Citation

McCaffery, B. J., & Gill, R. E. (2001). Bar-tailed godwit: Limosa lapponica. Birds of North America, Inc..

Chicago Style (17th ed.) Citation

McCaffery, Brian J., and Robert E. Gill. Bar-tailed Godwit: Limosa Lapponica. Philadelphia, Pa.: Birds of North America, Inc., 2001.

MLA (9th ed.) Citation

McCaffery, Brian J., and Robert E. Gill. Bar-tailed Godwit: Limosa Lapponica. Birds of North America, Inc., 2001.