| Author: | Kester, E. B. |
|---|---|
| Year: | 1931 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6486 |
| Subject: | Coal--Analysis |
| Link: | https://hdl.handle.net/2027/mdp.39015077576695 |