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Anchorage testing of mine-roof bolts.
| Author: | Barry, A. J. |
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| Additional Authors: | Barry, A. J., Panek, Louis A. |
| Year: | 1957 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of Interior, Bureau of Mines, |
| Series: | Report of investigations / Bureau of Mines ; |
| Report Number: | 5310 |
| Subject: | Mine roof bolting |
| Link: | https://hdl.handle.net/2027/mdp.39015077554239 |
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