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By: Fresquez, Philip R. - Aldon, Earl F. - Dennis, G. L. - Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) - United States. Forest Service.Edition:Publication info: [Fort Collins, Colo.], UDSA Forest Service, Rocky Mountain Forest and Range Experiment Station, [1988]Volume: no.480Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: