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[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey : Books and Open-File Reports [distributor], 1992.
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Portland, Or. : U.S. Geological Survey ; Denver, Colo. : USGS Earth Science Information Center, Open-File Reports Section [distributor], 1994.
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Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 2004.
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Washington, D.C. : U.S. G.P.O. ; Denver, CO : For sale by the U.S. Geological Survey, Information Services, 1999.
GB857.2.W2 S86 1999 |
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Portland , Ore. : U.S. Geological Survey, 1998.
GB857.2.W2 S87 1998 |
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Portland, Or. : Dept. of the Interior, U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports [Section, distributor], 1992.
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Portland, Or. : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports [Section, distributor], 1992.
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