Author: | Sayers, R. R. |
---|---|
Year: | 1930 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
SUDOC: | C 22.11:6367 |
Series: | Information circular / United States Department of Commerce, Bureau of Mines ; |
Report Number: | 6367 |
Subjects: | Industrial accidents |
Mines and mineral resources--Safety measures | |
Mine safety | |
Link: | https://hdl.handle.net/2027/mdp.39015077576190 |