Author: | Repsher, Richard C. |
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Additional Authors: | Black, D. Jan. |
Year: | 1979 |
Document Type: | MAIN |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:8399 |
Series: | Report of investigations ; |
Report Number: | 8399 |
Subjects: | Coal mines and mining--Safety measures |
Rock noise--Measurement | |
Link: | https://hdl.handle.net/2027/mdp.39015095269810 |