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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9585.A64 A83 |
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
TN948.D5 D53 |
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3.
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1982-
I 28.118/ 3-2: |
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4.
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Washington, D.C. : The Division, 1982-
HD9621.U4 D565 |
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5.
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1985-
HD9678.G3 G37 |
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6.
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9676.A1 G46 |
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7.
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9585.L49 L56 |
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8.
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.L58 L5 |
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9.
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9559.P3 P4 |
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10.
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Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
Discard |
|