1.
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[Reston, Va.?] : The Survey ; [Washington, D.C.?] : U.S. G.P.O. [distributor], 2000.
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2.
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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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3.
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Washington, D.C. : U.S. G.P.O., 1998.
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4.
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[Reston, Va.?] : Dept. of the Interior, U.S. Geological Survey ; For sale by the Book and Open-File Report Sales, 1992.
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5.
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Washington : U.S. G.P.0. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1994.
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6.
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Washington : U.S. G.P.0., 1994.
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7.
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Washington, D.C. : U.S. G.P.O. ; Denver, CO : For sale by the U.S. Geological Survey, Information Services, 1998.
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8.
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Washington, D.C. : U.S. G.P.O. ; Denver, CO : For sale by the U.S. Geological Survey, Information Services, 1998.
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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, 1998.
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10.
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Boulder, Colo. : Geological Society of America, 1984.
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