1967. This georeferenced raster layer represents locations of energy sources in China in 1967. It is taken from the book, Communist China: Map Folio, whi... Directorate of Intelligence, Office of Basic and Geographic Intelligence.
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1976. Welch, Edwin J., Kalliokoski, J., Michigan Technological University, Michigan, and Geological Survey Division. Extent: 1 map Notes: From: Kalliokoski, J. Magnitude and quality of Michigan's coal reserves. Lansing, Mich. : Geological Survey Division, 1977. ... Michigan Technological University.
1947. White, George W. (George Willard), 1903-1985. compiled by Geo. W. White. Scale approximately 1:56,000. Ohio. Division of Geological Survey.
1947. White, George W. (George Willard), 1903-1985. compiled by Geo. W. White. Scale approximately 1:56,000. Ohio. Division of Geological Survey.
1947. White, George W. (George Willard), 1903-1985. Scale approximately 1:56,000. compiled by Geo. W. White. Ohio. Division of Geological Survey.