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1by Geological Survey (U.S.), United States. Department of Agriculture, Marschner, F. J. (Francis Joseph), 1882-1966, Anderson, James R., Pecora, William T., Gerlach, Arch C., Overstreet, William B.“...United States Department of the Interior Geological Survey...”
Published 1967
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2by Geological Survey (U.S.), U.S. Census Bureau, United States. Conservation Needs Inventory Committee, United States. Department of Agriculture, Pecora, William T., Gerlach, Arch C., Overstreet, William B.“...United States Department of the Interior Geological Survey...”
Published 1964
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3by Geological Survey (U.S.), United States. Department of Agriculture, United States. Soil Conservation Service, United States. Department of Agriculture. Economic Research Service, United States. Farmers Home Administration, Pecora, William T., Gerlach, Arch C., Overstreet, William B.“...United States Department of the Interior Geological Survey...”
Published 1966
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4by Geological Survey (U.S.), United States. Soil Conservation Service, United States. Department of Agriculture, Pecora, William T., Gerlach, Arch C., Overstreet, William B.“...United States Department of the Interior Geological Survey...”
Published 1968
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5by Geological Survey (U.S.), United States. Soil Conservation Service, United States. Department of Agriculture, Pecora, William T., Gerlach, Arch C., Overstreet, William B.“...United States Department of the Interior Geological Survey...”
Published 1969
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Map