| Author: | Pynnonen, R. O. |
|---|---|
| Additional Authors: | Look, Allen D. |
| Year: | 1967 |
| Document Type: | USBI |
| Issuing Agency: | Bureau of Mines, |
| SUDOC: | I 28.27:8347 |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 8347 . |
| Subjects: | Mine safety |
| Loading and unloading--Accidents | |
| Link: | https://hdl.handle.net/2027/mdp.39015078514554 |