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Denver : U.S. Geological Survey, 2003.
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[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey, [1997]
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I 19.76: 98-148-A,B,C |
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Washington, U.S. Govt. Print. Off., 1973.
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Denver, Colo. : U.S. Dept. of the Interior, Geological Survey ; Alexandria, VA : For sale by the Branch of Distribution, 1986.
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7.
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[Reston, Va.] : Dept. of the Interior, U.S. Geological Survey ; Alexandria, VA : For sale by the Branch of Distribution, 1985.
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8.
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Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, [1999]
I 19.76: 99-587 |
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Washington, U.S. Govt. Print. Off., 1972.
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[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey, [1998]
I 19.76: 98-332 |
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