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Principles of reinforcing bedded mine roof with bolts
| Author: | Panek, Louis Anthony, |
|---|---|
| Year: | 1956 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:5156 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 5156 |
| Subject: | Mine roof bolting |
| Link: | https://hdl.handle.net/2027/mdp.39015078468355 |
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