Author: | Chetrick, M. H. |
---|---|
Year: | 1950 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:4738 |
Series: | Report of investigations / Bureau of Mines ; |
Report Number: | 4738 |
Subject: | Lignite |
Link: | https://hdl.handle.net/2027/mdp.39015078488247 |