Design practices for multiple-seam longwall mines
| Main Author: | |
|---|---|
| Corporate Author: | |
| Other Authors: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1993
|
| Series: | Information circular (United States. Bureau of Mines)
9360 |
| Subjects: |