| Author: | Busch, R. A. |
|---|---|
| Additional Authors: | Backer, R. R., Atkins, L. A., Kealy, Charles Daniel. |
| Year: | 1974 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Bureau of Mines, |
| SUDOC: | I 28.23:7964 |
| Series: | Report of investigations / Bureau of Mines ; |
| Report Number: | 7964 |
| Subjects: | Coal mine waste |
| Coal preparation | |
| Spoil banks | |
| Links: | https://hdl.handle.net/2027/mdp.39015078484469 |
| no.7961-7962,7964-7980 1974 |