| Author: | McDonald, L. Bruce. | 
|---|---|
| Additional Authors: | Pomroy, William H., | 
| Year: | 1980 | 
| Document Type: | USBI | 
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, | 
| SUDOC: | I 28.27:8830 | 
| Series: | Information circular - Bureau of Mines ; | 
| Report Number: | 8830 | 
| Subject: | Coal mines and mining--Fires and fire prevention--United States--Statistics | 
| Link: | https://hdl.handle.net/2027/mdp.39015078462028 |