| Author: | Ellman, R. C. | 
|---|---|
| Additional Authors: | Belter, J. W. | 
| Year: | 1961 | 
| Document Type: | USBI | 
| Issuing Agency: | U.S. Dept. of Interior, Bureau of Mines, | 
| SUDOC: | I 28.27:8032 | 
| Series: | Information circular / Bureau of Mines ; | 
| Report Number: | 8032 | 
| Subject: | Lignite | 
| Link: | https://hdl.handle.net/2027/mdp.39015078461392 |