| Author: | Deurbrouck, A. W. |
|---|---|
| Year: | 1972 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of Interior, Bureau of Mines, |
| SUDOC: | I 28.23:7633 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 7633 |
| Subject: | Coal--Sulfur content--United States |
| Links: | https://hdl.handle.net/2027/mdp.39015078526459 |
| no.7633-7640 1972 |