1.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9585.A64 A83 |
|
2.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
QD181.R4 R44 |
|
3.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9585.I76 I7 |
|
4.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.N54 C65 |
|
5.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.A82 A5 |
|
6.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.C4 C57 |
|
7.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
Discard |
|
8.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.L58 L5 |
|
9.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9585.L49 L56 |
|
10.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.S77 S7 |
|