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2by Mankinen, Edward A.“...U.S. Geological Survey,...”
Published 2007
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3by Pavelko, Michael T.“...U.S. Geological Survey,...”
Published 2007
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4by Welborn, Toby L.“...U.S. Geological Survey,...”
Published 2007
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5by Nolan, Thomas B. (Thomas Brennan), 1901-“...U.S. Geological Survey,...”
Published 1971
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6by Whitebread, Donald Harvey, 1926-“...U.S. Geological Survey,...”
Published 1969
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7by Nolan, Thomas B. (Thomas Brennan), 1901-“...U.S. Geological Survey,...”
Published 1974
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8by Brokaw, Arnold Leslie, 1911-“...U.S. Geological Survey,...”
Published 1967
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9Published 1983“...U.S. Geological Survey,...”
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11by Brokaw, Arnold Leslie, 1911-“...U.S. Geological Survey,...”
Published 1966
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12Published 1989“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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13by Van Loenen, Richard E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1993
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14Published 2008“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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15by Day, Gordon W.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1986
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16by Harris, R. N.“...U.S. Dept. of the Interior, Geological Survey :...”
Published 1988
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