| Year: | 1988 |
|---|---|
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior Bureau of Mines, |
| Series: | Information circular / United States. Bureau of Mines ; |
| Report Number: | 9183 |
| Subjects: | Strip mining--Environmental aspects--Congresses |
| Acid mine drainage--Congresses | |
| Strip mining--Waste disposal--Environmental aspects--Congresses | |
| Link: | https://hdl.handle.net/2027/mdp.39015078470344 |