Concentration of copper ores in North America / by Thomas G. Chapman.
Saved in:
| Main Author: | |
|---|---|
| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. G.P.O.,
1936.
|
| Series: | Bulletin (United States. Bureau of Mines) ;
392. |
| Subjects: |