| Author: | Sayers, R. R. |
|---|---|
| Year: | 1923 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:2453 |
| Series: | Report of investigations / United States. Bureau of Mines ; |
| Report Number: | 2453 |
| Subjects: | Mine safety |
| Occupational diseases | |
| Industrial hygiene | |
| Diseases | |
| Link: | https://hdl.handle.net/2027/mdp.39015086555573 |