1.
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[Denver, Colo.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 1999.
I 19.76: 99-364 |
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2.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1994.
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3.
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[Reston, Va.] : The Survey, 1996.
I 19.76: 96-17 |
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4.
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[Denver, CO] : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-501 |
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5.
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[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey, 2000.
I 19.76: 00-0228 |
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6.
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[Washington, D.C.] : U.S. G.P.O. ; Denver, CO : For sale by USGS Map Distribution, 1993.
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7.
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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, 1989.
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8.
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[Denver, Colo.] : U.S. Dept. of the Interior, U.S. Geological Survey, 1998.
I 19.76: 98-239 |
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9.
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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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10.
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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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