Author: | Adams, William W. |
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Additional Authors: | Gerry, L. S. |
Year: | 1931 |
Document Type: | USBM |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | C 22.5:509 |
Series: | Technical paper / Dept. of the Interior, Bureau of Mines ; |
Report Number: | 509 |
Subjects: | Explosives |
Coal mine accidents | |
Links: | https://hdl.handle.net/2027/mdp.39015077559139 |
https://hdl.handle.net/2027/mdp.39015086470948 |