1.
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[Denver, Colo.] : U.S. Dept. of Interior, Geological Survey, 1990.
I 19.76: 90-416 |
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2.
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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: 92-592 |
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3.
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[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 1992.
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4.
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[Washington, D.C.] : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1991.
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5.
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[Denver, Colo.] : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor, 1993]
I 19.76: 93-624 |
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6.
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[Reston, Va.] : U.S. Dept. of Interior, U.S. Geological Survey ; [Denver, Colo. : Open-File Reports Section, distributor], 1994.
I 19.76: 94-292 |
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7.
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[Reston, Va.?] : Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section, 1988.
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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, 1995.
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