| Additional Authors: | Wrenn, Virginia E., Machisak, John C., Jones, Nina L., Rice, Dora D. | 
|---|---|
| Year: | 1962 | 
| Document Type: | USBI | 
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, | 
| SUDOC: | I 28.27:8141 | 
| Series: | Information circular / United States. Bureau of Mines ; | 
| Report Number: | 8141 | 
| Subject: | Coal mine accidents--United States--Statistics | 
| Link: | https://hdl.handle.net/2027/mdp.39015078457085 |