| Author: | Couillard, David T. |
|---|---|
| Additional Authors: | Tomassoni, R. R., Nelson, Bruce C. |
| Year: | 1985 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:8999 |
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 8999 |
| Subjects: | Mine safety--Study and teaching--Audio-visual aids |
| Iron mines and mining--Minnesota--Mountain Iron Region--Safety | |
| Link: | https://hdl.handle.net/2027/mdp.39015078458612 |