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1
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2by Mills, Patrick C.“...U.S. Geological Survey ;...”
Published 1993
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3by Mills, Patrick C.“...U.S. Geological Survey ;...”
Published 1993
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4
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5by Kay, Robert T.“...U.S. Geological Survey,...”
Published 2006
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6by Brabets, Timothy P.“...U.S. Geological Survey,...”
Published 1984
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7by Kay, Robert T.“...U.S. Geological Survey,...”
Published 1997
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8
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9
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10Published 1999“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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11Published 1999“...[U.S. Geological Survey, U.S. Dept. of the Interior],...”
Government Document Book -
12by Kay, Robert T.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1994
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13by Mills, Patrick C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1993
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14by Avery, Charles, 1953-“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1994
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15Published 1997“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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16Published 1997“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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17by Brown, Timothy A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
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18by Mills, Patrick C.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1998
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19by Robinson, Steven M.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1998
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20Published 1999“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Government Document Microform Book