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1
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2by McDowell, Robert C., 1935-“...U.S. Geological Survey,...”
Published 1981
Government Document Map -
3by McDowell, Robert C., 1935-“...U.S. Geological Survey,...”
Published 1973
Government Document Map -
4by McDowell, Robert C., 1935-“...U.S. Geological Survey,...”
Published 1976
Government Document Map -
5by Weir, Gordon W. (Gordon Whitney), 1922-2011“...U.S. Geological Survey,...”
Published 1976
Government Document Map -
6by McDowell, Robert C., 1935-“...U.S. Geological Survey,...”
Published 1977
Government Document Map -
7by McDowell, Robert C., 1935-“...U.S. Geological Survey,...”
Published 1978
Government Document Map -
8Published 1992“...U.S. Geological Survey ; Kentucky Geological Survey,...”
Government Document Map -
9by McDowell, Robert C., 1935-“...U.S. Dept. of the Interior, Geological Survey ;...”
Published 1983
Government Document Book -
10Published 1986“...Dept. of the Interior, U.S. Geological Survey ;...”
Government Document Book