| Author: | Tomlinson, Walter H. |
|---|---|
| Year: | 1962 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines |
| SUDOC: | I 28.27:8066 |
| Series: | [United States] Bureau of Mines. Information circular 8066 |
| Subjects: | Coal mines and mining--Safety measures |
| Coal mine accidents | |
| Link: | https://hdl.handle.net/2027/mdp.39015078461319 |