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[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [1996]
I 19.76: 96-501 |
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2.
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Washington : U.S. Govt. Print. Off., 1979.
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3.
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[Reston, Va.] : U.S. Dept. of the Interior, 1981.
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4.
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Washington : U.S. Govt. Print. Off., 1977.
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5.
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Washington : U.S. Govt. Print. Off., 1975.
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6.
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Butte : Montana Bureau of Mines and Geology, 1976.
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7.
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[Reston, VA] : U.S. Dept. of the Interior, U.S. Geological Survey, 1998.
I 19.76: 98-517 |
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8.
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[Denver, CO] : U.S. Geological Survey, 1998.
I 19.76: 98-224-C |
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9.
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[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by Book and Open-File Report Sales, 1992.
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