| Author: | Bishop, O. M. |
|---|---|
| Year: | 1947 |
| Document Type: | BMRA |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | I 28.23:4048 |
| Series: | Report of investigations / Bureau of Mines ; |
| Report Number: | 4048 |
| Subjects: | Fluorspar--Illinois--Pope County |
| Zinc ores--Illinois--Pope County | |
| Link: | https://hdl.handle.net/2027/mdp.39015078487991 |