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By: Christensen, Alan G. - Lyon, L. Jack, - Unsworth, James W. - Intermountain Research Station (Ogden, Utah)Edition:Publication info: Ogden, UT, U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, [1993]Volume: no.303Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: