Cita APA (7th ed.)

Austin, O. L., Jr. (1961). Birds of the world: A survey of the twenty-seven orders and one hundred and fifty-families. Golden Press.

Cita Chicago (17th ed.)

Austin, Oliver Luther, Jr. Birds of the World: A Survey of the Twenty-seven Orders and One Hundred and Fifty-families. New York: Golden Press, 1961.

Cita MLA (9th ed.)

Austin, Oliver Luther, Jr. Birds of the World: A Survey of the Twenty-seven Orders and One Hundred and Fifty-families. Golden Press, 1961.