Cita APA

Howard, R., & Moore, A. (1980). A complete checklist of the birds of the world. Oxford University Press.

Citación estilo Chicago

Howard, Richard, and Alick Moore. A Complete Checklist of the Birds of the World. Oxford ; New York: Oxford University Press, 1980.

Cita MLA

Howard, Richard, and Alick Moore. A Complete Checklist of the Birds of the World. Oxford University Press, 1980.