| Author: | Johnson, Guy A. |
|---|---|
| Additional Authors: | Laage, Linneas W., Griffin, Russell E. |
| Year: | 1986 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:9079 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 9079 |
| Subject: | Mining machinery--Safety measures |
| Link: | https://hdl.handle.net/2027/mdp.39015078459024 |