Author: | Harrington, D. |
---|---|
Year: | 1939 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7089 |
Series: | Information circular / Bureau of Mines ; |
Report Number: | 7089 |
Subjects: | Coal mines and mining--Safety measures |
Mine dusts | |
Mine safety | |
Dust control | |
Link: | https://hdl.handle.net/2027/mdp.39015078534677 |