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By: Beckwith, Roy C. - Grimble, David G. - Weatherby, Julie C. - Pacific Northwest Research Station (Portland, Or.)Edition:Publication info: Portland, Or. (333 S.W. First Avenue, P.O. Box 3890, Portland 97208-3890), U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [1993]Volume: no.512Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: