| Additional Authors: | Barry, Anthony J., Oitto, R. H.,, Gilley, J. L., Zona, A. |
|---|---|
| Year: | 1967 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:6971 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 6971 |
| Subject: | Coal mines and mining |
| Link: | https://hdl.handle.net/2027/mdp.39015078532051 |