Cita APA

Sibley, C. G. (1990). Distribution and taxonomy of birds of the world. New York: Yale University Press.

Citación estilo Chicago

Sibley, Charles G.. Distribution and Taxonomy of Birds of the World. New York: Yale University Press, 1990.

Cita MLA

Sibley, Charles G.. Distribution and Taxonomy of Birds of the World. New York: Yale University Press, 1990.