APA (7th ed.) Citation

Collar, N. J., & Andrew, P. (1988). Birds to watch: The ICBP world checklist of threatened birds. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Collar, N. J., and P. Andrew. Birds to Watch: The ICBP World Checklist of Threatened Birds. Washington, D.C: Smithsonian Institution Press, 1988.

MLA (9th ed.) Citation

Collar, N. J., and P. Andrew. Birds to Watch: The ICBP World Checklist of Threatened Birds. Smithsonian Institution Press, 1988.