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The cost of developing to the operating stage and equipping a small or medium-sized mine in the Tri-State lead and zinc district
| Author: | Reigart, John R. |
|---|---|
| Year: | 1932 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | C 22.11:6591 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6591 |
| Subjects: | Zinc mines and mining |
| Lead mines and mining | |
| Link: | https://hdl.handle.net/2027/mdp.39015078515403 |
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