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By: Ostmark, H. Eugene. - Wilford, B. H. (Bill Howard), - Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) - United States. Forest Service.Edition:Publication info: Fort Collins, Colo, Rocky Mountain Forest and Range Experiment Station, 1956Volume: no.22Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: