| Author: | Harrington, Daniel J. |
|---|---|
| Additional Authors: | Owings, C. W., Cash, Frank E. |
| Year: | 1929 |
| Document Type: | MAIN |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | C 22.11:6211 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6211 |
| Subjects: | Mine safety |
| Mine accidents | |
| Link: | https://hdl.handle.net/2027/mdp.39015095082429 |