Sibley, C. G. (1990). Distribution and taxonomy of birds of the world. New York: Yale University Press.
Chicago Style CitationSibley, Charles G.. Distribution and Taxonomy of Birds of the World. New York: Yale University Press, 1990.
MLA CitationSibley, Charles G.. Distribution and Taxonomy of Birds of the World. New York: Yale University Press, 1990.
Warning: These citations may not always be 100% accurate.