Author: | Timko, Robert J. |
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Additional Authors: | Thimons, Edward D., Kissell, Fred N. |
Year: | 1986 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:9109 |
Series: | Information circular / Bureau of Mines ; |
Report Number: | 9109 |
Subjects: | Mine gases |
Coal mines and mining--Safety measures | |
Mine shafts | |
Mine ventilation | |
Link: | https://hdl.handle.net/2027/mdp.39015078464883 |