| Author: | Fies, Milton Henry, |
|---|---|
| Year: | 1934 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:6775 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6775 |
| Subjects: | Mines and mineral resources |
| Mineral industries | |
| Link: | https://hdl.handle.net/2027/mdp.39015077571969 |