1978. Projection: Lambert Conformal Conic Projection: Standard Parallels -72º40' and -75º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
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1978. Nelson, Willis H. (Willis Howard), 1920-2010, Schmidt, D. L. (Dwight L.), and Williams, Paul L. (Paul Lincoln), 1932-2020. Projection: Polar Stereographic Projection: Standard Parallels -80º14'; Series: USGS 1:250,000 Geologic Reconnaissance Series. United States Geological Survey.
1978. Projection: Lambert Conformal Conic Projection: Standard Parallels -72º40' and -75º20'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1978. Cathey, Carl A., Oldham, Jerry B., and Wade, F. Alton (Franklin Alton), 1903-1978. Projection: Lambert Conformal Conic Projection: Standard Parallels -76º40' and -79º20'; Series: USGS 1:250,000 Geologic Reconnaissance Series. United States Geological Survey.
1978. Boyd, Walter W., Jr., Ford, Arthur B. (Arthur Barnes), 1932-, Nelson, Willis H. (Willis Howard), 1920-2010, and Schmidt, D. L. (Dwight L.). Projection: Polar Stereographic Projection: Standard Parallels -80º14'; Series: USGS 1:250,000 Geologic Reconnaissance Series. United States Geological Survey.
1978. Boyd, Walter W., Jr., Ford, Arthur B. (Arthur Barnes), 1932-, and Schmidt, D. L. (Dwight L.). Projection: Polar Stereographic Projection: Standard Parallels -80º14'; Series: USGS 1:250,000 Geologic Reconnaissance Series. United States Geological Survey.
1978. Projection: WGS72 Mercator Projection; Series: Defense Mapping Agency Nautical Charts. National Geospatial-Intelligence Agency.
1978. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base map dated 1976; interpretations derived from soil map constructed 1975.; "Projection and 10,000-metre grid ... Dept. of Agriculture, Soil Conservation Service (Washington.).
1978. Levinson, David M. and Chen, Wei. High-quality GIS land use maps for the Twin Cities Metropolitan Area for 1978 that were developed from paper maps (no GIS version existed previousl...
1978. United States. Soil Conservation Service. Shows land use.; "October 1978."; Includes vicinity map.; "4-R-36896." 70 x 62 centimeters. The Service (Washington, D.C.?).
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