1.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.A82 A5 |
|
2.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9585.A64 A83 |
|
3.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.B3 B38 |
|
4.
|
Washington, DC : U.S. Dept. of the Interior, Bureau of Mines,
I 28.138: |
|
5.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.C4 C57 |
|
6.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9590.4 .C56 |
|
7.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
HD9539.N54 C65 |
|
8.
|
Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1989-
HD9585.S15 C78 |
|
9.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines,
TN948.D5 D53 |
|
10.
|
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1982-
I 28.118/ 3-2: |
|