Leatherman, D., Brewer, J. W., & Stevens, R. E. (1996). Western spruce budworms. Colorado State University Extension Service.
Chicago Style (17th ed.) CitationLeatherman, David, J. Wayne Brewer, and Robert E. Stevens. Western Spruce Budworms. [Fort Collins, Colo.]: Colorado State University Extension Service, 1996.
MLA (8th ed.) CitationLeatherman, David, et al. Western Spruce Budworms. Colorado State University Extension Service, 1996.
Warning: These citations may not always be 100% accurate.