APA (7th ed.) Citation

Sibley, C. G., & Monroe, B. L. (1990). Distribution and taxonomy of the birds of the world. Yale University Press.

Chicago Style (17th ed.) Citation

Sibley, Charles Gald, and Burt L. Monroe. Distribution and Taxonomy of the Birds of the World. London: Yale University Press, 1990.

MLA (9th ed.) Citation

Sibley, Charles Gald, and Burt L. Monroe. Distribution and Taxonomy of the Birds of the World. Yale University Press, 1990.