| Author: | Schlick, Donald P. |
|---|---|
| Additional Authors: | Booker, David B.,, Morgis, Genevieve G., |
| Year: | 1971 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Bureau of Mines, |
| SUDOC: | I 28.27:8528 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 8528 |
| Subjects: | Coal mines and mining |
| Mine dusts--Standards | |
| Link: | https://hdl.handle.net/2027/mdp.39015078456715 |