| Author: | Kraemer, A.J. | 
|---|---|
| Additional Authors: | Lane, E.C. | 
| Year: | 1931 | 
| Document Type: | BMRA | 
| Issuing Agency: | Dept. of Commerce, Bureau of Mines : | 
| SUDOC: | C 22.12:3092 | 
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; | 
| Report Number: | 3092 | 
| Subjects: | Coal mines and mining--United States | 
| Coal mine accidents | |
| Links: | https://hdl.handle.net/2027/mdp.39015077567082 | 
| no.3061-3100 1931 |