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Control of roof and prevention of accidents from falls of rock and coal
| Author: | Forbes, J. J. |
|---|---|
| Additional Authors: | Sloman, Harold J. |
| Year: | 1948 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7461 |
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 7461 |
| Subjects: | Mine roof control |
| Coal mines and mining--Safety measures | |
| Link: | https://hdl.handle.net/2027/mdp.39015077578584 |
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