USDA Forest Service research paper PNW
U.S. Dept. of Agriculture, Pacific Northwest Forest and Range Experiment Station, Forest Service
by Dale R. Potter ... [et al.]
Pacific Northwest Forest and Range Experiment Station 1972 USDA Forest Service research paper PNW 140
Available at 1 libraries
J. Edward Dealy
Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture 1971 USDA Forest Service research paper PNW 125
by Jerry F. Franklin and C.T. Dyrness
U.S. Dept of Agriculture, Pacific Northwest Forest and Range Experiment Station 1969 USDA Forest Service research paper PNW 80
Available at 4 libraries