| Author: | Hill, John R. M. |
|---|---|
| Additional Authors: | McDonald, Michael M.,, McNay, Lewis M., |
| Year: | 1974 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Bureau of Mines, |
| SUDOC: | I 28.23:7850 |
| Series: | Report of investigations / United States. Bureau of Mines ; |
| Report Number: | 7850 |
| Subject: | Mining engineering |
| Link: | https://hdl.handle.net/2027/mdp.39015078539031 |