| Author: | Paone, James. |
|---|---|
| Additional Authors: | Bruce, William E. |
| Year: | 1963 |
| Document Type: | BMRA |
| Issuing Agency: | Bureau of Mines, |
| SUDOC: | I 28.23:6324 |
| Series: | Report of investigations / U.S. Bureau of Mines ; |
| Report Number: | 6324 |
| Subjects: | Boring |
| Drilling and boring | |
| Link: | https://hdl.handle.net/2027/mdp.39015077556481 |