1955. United States Geological Survey.
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1954. United States Geological Survey.
1944. United States Geological Survey.
1954. United States Geological Survey.
1954. United States Geological Survey.
1967. United States Geological Survey.
1984. Stamped in black with John E. Brush Map Library. United States Geological Survey.
1954. Stamped in black with John E. Brush Map Library Stamped in black with Rutgers-The State University, Department of Geography, New Brunswick, New Jer... United States Geological Survey.
1955. United States Geological Survey.
1954. United States Geological Survey.
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