| Author: | Grove, G. W. |
|---|---|
| Year: | 1938 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7037 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 7037 |
| Subjects: | Mine ventilation |
| Mine safety | |
| Link: | https://hdl.handle.net/2027/mdp.39015077575176 |