Carolin, V. M., & Coulter, W. K. (1975). Comparison of western spruce budworm populations and damage on grand fir and Douglas-fir trees. Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service.
Chicago Style (17th ed.) CitationCarolin, V. M., and W. K. Coulter. Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-fir Trees. Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1975.
MLA (8th ed.) CitationCarolin, V. M., and W. K. Coulter. Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-fir Trees. Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1975.
Warning: These citations may not always be 100% accurate.