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1by Anna, Lawrence O.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1998
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2by Anna, Lawrence O.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1998
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3by Ambos, Dale S.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1995
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4Published 1998“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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5Published 1998“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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6Published 1999“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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7by O'Brien, Grady M.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1991
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8by Wood, David B.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1992
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9by O'Brien, Grady M.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
Government Document Microform Book -
10by Loskot, Carole L.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
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11by Czarnecki, John B.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
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12Published 1994“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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13by Boucher, Michelle S.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1994
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14by Gilmore, Thomas D.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1992
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15Published 1993“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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16by O'Brien, Grady M.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Microform Book -
17by Loskot, Carole L.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
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18Published 1993“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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19by McKinley, P. W.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1994
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20by Flint, Lorraine E.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1995
Government Document Book