| Author: | Tomimatsu, T. T. |
|---|---|
| Year: | 1980 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines ; |
| SUDOC: | I 28.27:8836 |
| Series: | Information circular / United States Department of the Interior, Bureau of mines ; |
| Report Number: | 8836 |
| Subjects: | Copper mines and mining--United States--Finance |
| Copper industry and trade--United States--Finance | |
| Link: | https://hdl.handle.net/2027/mdp.39015078457457 |