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1by Stevens, Michael R.“...U.S. Geological Survey ;...”
Published 1997
Government Document Microform Book -
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7by Hail, William J. (William James), Jr., 1922-“...U.S. Geological Survey,...”
Published 1981
Government Document Book -
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10Published 1979“...U.S. Geological Survey,...”
Government Document Map -
11by Dickinson, Kendell A., 1931-“...[U.S. Geological Survey],...”
Published 1981
Government Document Book -
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18Published 1983“...U.S. Geological Survey ;...”
Government Document Book -
19by Elliott, John G. (John Grant), 1951-“...U.S. Geological Survey,...”
Published 1982
Government Document Book -
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