1.
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Washington : U.S. G.P.O., 1988.
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2.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1988-
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3.
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Washington : U.S. Govt. Print. Off., 1984.
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4.
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Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, 1992.
I 19.76: 92-558 |
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5.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1997.
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6.
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Washington, D.C. : U.S. G.P.O., 1996.
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7.
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Washington : U.S. G.P.O. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1996.
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8.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1996.
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9.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1996.
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10.
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Washington, D.C. : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1994.
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