APA (7th ed.) Citation

Wheeler, B. K., & Clark, W. S. (1995). A photographic guide to North American raptors. Academic Press.

Chicago Style (17th ed.) Citation

Wheeler, Brian K., and William S. Clark. A Photographic Guide to North American Raptors. London ; San Diego: Academic Press, 1995.

MLA (9th ed.) Citation

Wheeler, Brian K., and William S. Clark. A Photographic Guide to North American Raptors. Academic Press, 1995.