| Author: | Popoff, Constantine C. |
|---|---|
| Year: | 1966 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines ; |
| SUDOC: | I 28.27:8283 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 8283 |
| Subject: | Mines and mineral resources |
| Link: | https://hdl.handle.net/2027/mdp.39015078464511 |