APA (7th ed.) Citation

Mowbray, T. B. (1999). American wigeon: Anas americana. Birds of North America, Inc..

Chicago Style (17th ed.) Citation

Mowbray, Thomas B. American Wigeon: Anas Americana. Philadelphia: Birds of North America, Inc., 1999.

MLA (9th ed.) Citation

Mowbray, Thomas B. American Wigeon: Anas Americana. Birds of North America, Inc., 1999.

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