Mining methods at Minas de Matahambre, Matahambre, Pinar del Rio, Cuba
| Main Author: | Richert, George Leo. |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Bureau of Mines,
1929.
|
| Physical Description: |
18 pages : illustrations ; 27 cm. |
| Series: |
Information circular (United States. Bureau of Mines) ;
6145. |
| Subjects: |