| Author: | Tomlinson, W. H. |
|---|---|
| Year: | 1940 |
| Document Type: | USBI |
| Issuing Agency: | United States Bureau of Mines, |
| SUDOC: | I 28.27:7103 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 7103 |
| Subject: | Coal mine accidents--Indiana |
| Link: | https://hdl.handle.net/2027/mdp.39015078534776 |