1966. 2011-12-20T19:54:13Z. 2012-03-05T17:26:46Z. Ulrich, George E. U.S. Geological Survey. English. Public. Kentucky, Todd County, and Logan County.
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1965. 2011-12-06T19:30:18Z. 2012-03-05T17:20:13Z. Klemic, Harry, 1920-. U.S. Geological Survey. English. Public. Kentucky, Todd County, and U.S.
