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1by Blackwelder, Blake W.“...U.S. Dept. of the Interior, Geological Survey :...”
Published 1981
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2by Heath, Ralph C.“...U.S. Dept. of the Interior, Geological Survey ;...”
Published 1980
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3by Thomas, N. O. (Nathan O'Berry), 1916-“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1981
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4Published 1981“...U.S. Dept. of the Interior, Geological Survey,...”
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5Published 1982“...U.S. Dept. of the Interior, Geological Survey ;...”
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6by Sohl, Norman F. (Norman Frederick), 1924-“...U.S. Dept..of the Interior, Geological Survey ;...”
Published 1983
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7by Hagstrum, J. T.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1983
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8by Popenoe, Peter“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1983
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9by Dolan, Robert“...Dept. of the Interior, U.S. Geological Survey :...”
Published 1985
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10by Crawford, J. Kent“...U.S. Dept. of the Interior, Geological Survey ;...”
Published 1985
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11by D'Agostino, John P.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1985
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12by Giese, G. L.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1985
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13Published 1985“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book -
14Published 1985“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book -
15Published 1985“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book -
16Published 1985“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book -
17Published 1985“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book -
18Published 1984“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book -
19by Griffitts, Wallace R.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1984
Government Document Book -
20Published 1985“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book