United States Dept. of the Interior, U.S. Geological Survey. (1987). INE-GRAPHS digital one-to-two-million-scale-maps. National Cartographic Information Center, U.S. Geological Survey.
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Chicago Style (17th ed.) Citation
United States Dept. of the Interior, U.S. Geological Survey. INE-GRAPHS Digital One-to-two-million-scale-maps. Reston, Va: National Cartographic Information Center, U.S. Geological Survey, 1987.
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MLA (9th ed.) Citation
United States Dept. of the Interior, U.S. Geological Survey. INE-GRAPHS Digital One-to-two-million-scale-maps. National Cartographic Information Center, U.S. Geological Survey, 1987.
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