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1Published 1991“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Government Document Book -
2Published 1991“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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3Published 1994“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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4by Ortiz, Roderick F.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1998
Government Document Book -
5by Dash, Russell G.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1999
Government Document Book -
6by Studley, Seth E.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2000
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7Published 1984“...U.S. Dept. of the Interior, Geological Survey,...”
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8by Dunlap, L. E.“...U.S. Dept. of the Interior, Geological Survey ;...”
Published 1985
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9by Abbott, P. O.“...U.S. Dept. of the Interior, Geological Survey ;...”
Published 1985
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10by Burns, Alan W.“...U.S. Dept. of the Interior, Geological Survey ;...”
Published 1985
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11by Cain, Doug“...Dept. of the Interior, U.S. Geological Survey :...”
Published 1988
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12by Plafcan, Maria“...Dept. of the Interior, U.S. Geological Survey :...”
Published 1988
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13by Burns, Alan W.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1989
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