APA (7th ed.) Citation

Monroe, B. L., & Sibley, C. G. (1993). A world checklist of birds. Yale University Press.

Chicago Style (17th ed.) Citation

Monroe, Burt L., and Charles G. Sibley. A World Checklist of Birds. New Haven: Yale University Press, 1993.

MLA (9th ed.) Citation

Monroe, Burt L., and Charles G. Sibley. A World Checklist of Birds. Yale University Press, 1993.