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1by Faunt, Claudia C.“...U.S. Geological Survey,...”
Published 1997
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4by Grasso, Dennis N.“...U.S. Geological Survey,...”
Published 1996
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5by D'Agnese, Frank A.“...U.S. Geological Survey,...”
Published 1997
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6by Grasso, Dennis N.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1996
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7Published 1997“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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8by D'Agnese, Frank A.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1998
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9Published 1999“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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10by Steinkampf, W. C.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 2001
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11Published 2002“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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12by Belcher, Wayne R.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2002
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13by Belcher, Wayne R.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2001
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14by D'Agnese, Frank A.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1999
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Government Document eBook