1.
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Washington, DC : U.S. G.P.O. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1994.
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2.
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[Reston, Va.?] : The Survey, 1997.
I 19.76: 97-738 |
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3.
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[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor, 1994]
I 19.76: 94-147 |
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4.
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[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-280 |
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5.
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Washington : U.S. G.P.O., for sale by the U.S. Geological Survey Federal Center, Denver, Color., 1989.
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6.
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[Reston, Va.?] : The Survey, 1998.
I 19.76: 97-851 |
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7.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Branch of Distribution, Books and Open-file Reports Section, U.S. Geological Survey, 1988.
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8.
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[Denver, CO] : Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor], 1990.
I 19.76: 90-418 |
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9.
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[Reston, Va.?] : The Survey, 1996.
I 19.76: 96-12 |
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