1.
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[Washington, D.C.] : U.S. G.P.O. ; Denver, CO : Free on application to the Books and Open-File Reports Section, U.S. Geological Survey, 1990.
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2.
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Washington : U.S. G.P.O., 1982.
QE535.2.U6 I58 1982 |
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3.
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Columbia : University of Missouri Press, c1996.
QE535.2.U6 B34 1996 |
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4.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1994.
QE535.2.U6 I59 1994 vol. H |
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5.
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Washington : U.S. G.P.O. ; Denver, CO : Free on application to USGS Map Distribution, [1993]
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6.
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[Washington, D.C.] : U.S. G.P.O. ; Denver, CO : For sale by the Open File Reports Section, U.S. Geological Survey, 1991.
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7.
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Carbondale : Southern Illinois University Press, c1989.
QE535.2.U6 A85 1989 |
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