| Author: | Gerry, C. N. |
|---|---|
| Year: | 1927 |
| Document Type: | N/A |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Information Circular No. 6025 |
| Subject: | Mines and mineral resources -- Montana. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc100839/ |