APA (7th ed.) Citation

Buckley, N. J. (1999). Black vulture: Coragyps atratus. Birds of North America, Inc..

Chicago Style (17th ed.) Citation

Buckley, Neil J. Black Vulture: Coragyps Atratus. Philadelphia: Birds of North America, Inc., 1999.

MLA (9th ed.) Citation

Buckley, Neil J. Black Vulture: Coragyps Atratus. Birds of North America, Inc., 1999.