Mining practice at Ray Mines, Nevada Consolidated Copper Co., Ray, Arizona
| Main Author: | Thomas, Robert W. |
|---|---|
| Other Authors: | Consolidated Copper Company. |
| Format: | Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Bureau of Mines,
1929.
|
| Physical Description: |
27 pages : illustrations ; 27 cm. |
| Series: |
Information circular (United States. Bureau of Mines) ;
6167. |
| Subjects: |