| Author: | Hadley, Jarvis B. |
|---|---|
| Year: | 1942 |
| Document Type: | N/A |
| SUDOC: | I 19.3:931-S |
| Series: | Strategic minerals investigations |
| Report Number: | USGS Bulletin 931-S |
| Subjects: | Mines and mineral resources. |
| Manganese ores. | |
| Mines and mineral resources -- California. | |
| Manganese ores -- California -- Imperial County. | |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc304209/ |