Author: | Denny, Edward H. |
---|---|
Year: | 1936 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:6925 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 6925 |
Subjects: | Mines and mineral resources |
Mine safety | |
Mine accidents | |
Link: | https://hdl.handle.net/2027/mdp.39015077569062 |