| Author: | Grove, G. W. |
|---|---|
| Additional Authors: | Quenon, E. E. |
| Year: | 1948 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7434 |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 7434 |
| Subjects: | Mine safety--Pennsylvania--Allegheny County |
| Mine fires--Pennsylvania--Allegheny County | |
| Link: | https://hdl.handle.net/2027/mdp.39015077577594 |