Strothmann, R. O., & Pacific Southwest Forest and Range Experiment Station. (1972). Douglas-fir in northern California: Effects of shade on germination, survival, and growth. Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture.
Chicago Style (17th ed.) CitationStrothmann, R. O., and Pacific Southwest Forest and Range Experiment Station. Douglas-fir in Northern California: Effects of Shade on Germination, Survival, and Growth. Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1972.
MLA (8th ed.) CitationStrothmann, R. O., and Pacific Southwest Forest and Range Experiment Station. Douglas-fir in Northern California: Effects of Shade on Germination, Survival, and Growth. Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1972.