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By: United States. Forest Service. - Patton, David R. - Ffolliott, Peter F. - Gallina, Sonia - Bartlett, E. T. - Mexico. - University of Arizona. - Mexico. - Man and the Biosphere Program.Edition:Publication info: [Washington, D.C.?], U.S. Dept. of Agriculture, Forest Service, 1983Volume: no.36Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: