APA (7th ed.) Citation

Leatherman, D., Brewer, J. W., & Stevens, R. E. (1996). Western spruce budworms. Colorado State University Extension Service.

Chicago Style (17th ed.) Citation

Leatherman, David, J. Wayne Brewer, and Robert E. Stevens. Western Spruce Budworms. [Fort Collins, Colo.]: Colorado State University Extension Service, 1996.

MLA (8th ed.) Citation

Leatherman, David, et al. Western Spruce Budworms. Colorado State University Extension Service, 1996.