APA (7th ed.) Citation

DeMars, C. J., & Roettgering, B. H. (1982). Western pine beetle ([Rev. Nov. 1982.].). U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

DeMars, Clarence J., and Bruce H. Roettgering. Western Pine Beetle. [Rev. Nov. 1982.]. [Washington, D.C.?]: U.S. Dept. of Agriculture, Forest Service, 1982.

MLA (9th ed.) Citation

DeMars, Clarence J., and Bruce H. Roettgering. Western Pine Beetle. [Rev. Nov. 1982.]. U.S. Dept. of Agriculture, Forest Service, 1982.