APA (7th ed.) Citation

Juniper, T., & Parr, M. (1998). Parrots: A guide to parrots of the world. Yale University Press.

Chicago Style (17th ed.) Citation

Juniper, Tony, and Mike Parr. Parrots: A Guide to Parrots of the World. New Haven: Yale University Press, 1998.

MLA (9th ed.) Citation

Juniper, Tony, and Mike Parr. Parrots: A Guide to Parrots of the World. Yale University Press, 1998.