| Author: | May, J. P. |
|---|---|
| Year: | 1990 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I28.27:9250 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 9250 |
| Subjects: | Mine haulage--Accidents |
| Spoil banks--Accidents | |
| Link: | https://hdl.handle.net/2027/mdp.39015078458422 |