APA (7th ed.) Citation

Gibson, K. E., & Kegley, S. (2004). Testing the efficacy of verbenone in reducing mountain pine beetle attacks in second-growth ponderosa pine. U.S. Dept. of Agriculture, Forest Service, Northern Region, Forest Health Protection.

Chicago Style (17th ed.) Citation

Gibson, Kenneth E., and Sandy Kegley. Testing the Efficacy of Verbenone in Reducing Mountain Pine Beetle Attacks in Second-growth Ponderosa Pine. Missoula, MT: U.S. Dept. of Agriculture, Forest Service, Northern Region, Forest Health Protection, 2004.

MLA (9th ed.) Citation

Gibson, Kenneth E., and Sandy Kegley. Testing the Efficacy of Verbenone in Reducing Mountain Pine Beetle Attacks in Second-growth Ponderosa Pine. U.S. Dept. of Agriculture, Forest Service, Northern Region, Forest Health Protection, 2004.