| Author: | Gray, T. E. |
|---|---|
| Additional Authors: | Boley, C. C. |
| Year: | 1958 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:5405 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 5405 |
| Subjects: | Coal preparation |
| Coal--Virginia | |
| Links: | https://hdl.handle.net/2027/mdp.39015078541813 |
| no.5401-5410 1958 |