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1by Johnston, William H.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1994
Government Document Book -
2by Coon, William F.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
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3by Sherwood, Donald A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1999
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4by Coon, William F.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2000
Government Document Book -
5by Sherwood, Donald A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2001
Government Document Book -
6by Sherwood, Donald A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2003
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7by Sherwood, Donald A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1999
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8by Coon, William F.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2004
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9by Sherwood, Donald A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2004
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10by Sherwood, Donald A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2004
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11by Sherwood, Donald A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2005
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12by Coon, William F.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2008
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13by Bubeck, Robert C.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1989
Government Document Book