1960. 2011-03-29T19:35:55Z. 2015-09-28T17:08:33Z. Daniel, Thomas W. Geological Survey of Alabama. English. Public. Alabama, Limestone County, and Limestone County (Ala.).
1960. 2011-03-29T19:44:30Z. 2021-05-05T21:39:48Z. Newton, John G., 1929-. Geological Survey of Alabama. English. Public. Alabama, Marengo County, and Marengo County (Ala.).
1960. 2008-12-03T18:54:50Z. 2011-03-28T19:50:51Z. Kay, Marshall, 1904-1975. John Wiley & Sons : Distributed by the Geological Society of America. English. Public. North America.
1960. 2011-04-29T17:37:34Z. 2012-02-14T23:31:20Z. Cattermole, J. Mark (John Mark), 1908-. U.S. Geological Survey. English. Public. Tennessee, Knox County, and Blount County.
1960. 2012-09-06T20:15:40Z. 2013-03-18T22:16:50Z. Merewether, E. A. (Edward Allen), 1930-. Dept. of the Interior, U.S. Geological Survey. English. Public. Colorado.