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1by Winterstein, Thomas A.“...U.S. Geological Survey,...”
Published 2007
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2by Arntson, A. D.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2004
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3by Stark, James R.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2005
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4by Cowdery, T. K. (Timothy K.)“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2008
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5by Arntson, A. D.“...U.S. Dept. of the Interior, Geological Survey ;...”
Published 1985
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6by Arntson, A. D.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1987
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7by Winterstein, Thomas A.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1989
Government Document Book