Williamson, R. L. (1982). Response to commercial thinning in a 110-year old Douglas-fir stand. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station.
Chicago Style (17th ed.) CitationWilliamson, Richard L. Response to Commercial Thinning in a 110-year Old Douglas-fir Stand. Portland, Or.: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1982.
MLA (9th ed.) CitationWilliamson, Richard L. Response to Commercial Thinning in a 110-year Old Douglas-fir Stand. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1982.
Warning: These citations may not always be 100% accurate.