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By: Wadsworth, Frank H. - Pearson, G. A. (Gustaf Adolph),Edition:Publication info: Tucson, Ariz, Southwestern Forest and Range Experiment Station, 1943Volume: no.5Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Pearson, G. A. (Gustaf Adolph),Edition:Publication info: Washington, D.C, G.P.O, 1912Volume: no.196Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Pearson, G. A. (Gustaf Adolph),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, Forest Service, 1950Volume: no.6Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Pearson, G. A. (Gustaf Adolph),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1923Volume: no.1105 (1923)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: