Author: | Paul, J. W. |
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Additional Authors: | Paul, J. W. |
Year: | 1930 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
Series: | Information circular / Bureau of Mines ; |
Report Number: | 6345 |
Subjects: | Coal mine accidents |
Mine safety | |
Link: | https://hdl.handle.net/2027/mdp.39015077576067 |