Author: | Cervik, Joseph. |
---|---|
Year: | 1969 |
Document Type: | TPRM |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines ; |
SUDOC: | I 28.26/6:10 |
Series: | Technical progress report ; |
Report Number: | 10 |
Subjects: | Coal mines and mining |
Mine gases | |
Link: | https://hdl.handle.net/2027/mdp.39015077584061 |