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1by United States. National Capital Park and Planning Commission., Grant, U. S. (Ulysses S.), 1881-1968., Brown, Carey H., Eliot, Charles W. (Charles William), 1899-1993.Subjects: “...Parks--Washington Metropolitan Area--Planning--Maps...”
Published 1928
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2by Geological Survey (U.S.), Pecora, William T., Gerlach, Arch C., Overstreet, William B.“.... Shows the geographic locations of topographic maps covering metropolitan areas, national parks...”
Published 1969
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3by Geological Survey (U.S.), U.S. Census Bureau, Pecora, William T., Gerlach, Arch C., Overstreet, William B.“... of manufacturing employment in metropolitan areas, as of 1963. Shows employees in the manufacturing of products...”
Published 1963
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