| Author: | Murray, Arthur L. |
|---|---|
| Year: | 1932 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | C 22.12:3184 |
| Series: | Report of investigations / United States Department of Commerce, Bureau of Mines ; |
| Report Number: | 3184 |
| Subjects: | Mining engineering--Industrial hygiene |
| Mines and mineral resources--Industrial hygiene | |
| Mineral industries--Industrial hygiene | |
| Link: | https://hdl.handle.net/2027/mdp.39015077562901 |