| Author: | Anundsen, E. A.. |
|---|---|
| Year: | 1941 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7147 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 7147. |
| Subjects: | Mine safety |
| Mine accidents | |
| Link: | https://hdl.handle.net/2027/mdp.39015078534313 |