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1
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2Published 1980“...U.S. Geological Survey,...”
Government Document Book -
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4
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5
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6Published 1981“...U.S. Geological Survey...”
Government Document Book -
7by Baker, E. T. (Ernest T.), 1931-“...U.S. Geological Survey,...”
Published 1983
Government Document Book -
8Published 1982“...U.S. Geological Survey ;...”
Government Document Book -
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13
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14by Brown, Richmond F. (Richmond Flint), 1925-“...U.S. Geological Survey ;...”
Published 1984
Government Document Book -
15by Orr, Brennon R.“...U.S. Geological Survey ;...”
Published 1985
Government Document Microform Book -
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17by Wells, Frank C.“...U.S. Geological Survey ;...”
Published 1985
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18by Maclay, Robert W.“...U.S. Geological Survey ;...”
Published 1987
Government Document Microform Book -
19by Ryder, Paul D.“...U.S. Geological Survey ;...”
Published 1991
Government Document Microform Book -
20