| Year: | 1983 |
|---|---|
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines : |
| SUDOC: | I 28.27:8935 |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 8935 |
| Subject: | Mines and mineral resources--United States--Information services |
| Link: | https://hdl.handle.net/2027/mdp.39015078466490 |