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Roof bolting in Alabama coal mines and iron-ore mines
| Author: | Young, H. C. |
|---|---|
| Year: | 1954 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7678 |
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 7678 |
| Subjects: | Mine roof bolting |
| Iron mines and mining--Alabama--Safety measures | |
| Coal mines and mining--Alabama--Safety measures | |
| Link: | https://hdl.handle.net/2027/mdp.39015078460253 |
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