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1by German, E. R.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1995
Government Document Book -
2by Phelps, G. G.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1997
Government Document Book -
3by Halford, Keith J.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1998
Government Document Book -
4Published 1997“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Government Document Microform Book -
5by Sepúlveda, Nicasio“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2004
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Government Document Book -
6by Wicklein, Shaun M.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2004
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Government Document Book -
7by Sepúlveda, Nicasio“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2006
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Government Document eBook -
8by Phelps, G. G.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2001
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Government Document Book