| Author: | Birge, George W. |
|---|---|
| Additional Authors: | Wolfson, D. E., Lynch, James H., |
| Year: | 1964 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:6416 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 6416 |
| Subjects: | Coal--Carbonization |
| Coal--Kentucky--Letcher County | |
| Link: | https://hdl.handle.net/2027/mdp.39015078527192 |