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1by Brightbill, Robin A.“...U.S. Dept. of the Interior, U.S. Geological Survey...”
Published 2003
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Government Document Book -
2by Rowan, Elisabeth L.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2006
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3by Eckhardt, David A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2012
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Government Document eBook -
4by Rowan, Elisabeth L.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2006
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Government Document eBook -
5by Eckhardt, David A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2012
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connect to online version. (PDF)
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6by Herb, William J.“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1981
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7by Staubitz, W. W. (Ward W.)“...U.S. Dept. of the Interior, Geological Survey,...”
Published 1983
Government Document Book