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By: Torgersen, Torolf R. - Torgersen, Anna S. - United States. Forest Service. Pacific Northwest Region. - Pacific Northwest Research Station (Portland, Or.)Edition:Publication info: Portland, OR, U.S. Dept. of Agriculture, Forest Serivce, Pacific Northwest Region, [1995]Volume: 1995Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: