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By: Curtis, Robert O. - Bruce, David, - VanCoevering, Caryanne. - Pacific Northwest Forest and Range Experiment Station (Portland, Or.)Edition:Publication info: Portland, Or, Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1968Volume: no.56Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: