Nalaganje...
Development of a mechanical roof breaker for ground control in longwall operations under massive roof /
Shranjeno v:
| Glavni avtor: | |
|---|---|
| Korporativna značnica: | |
| Format: | Neznan |
| Jezik: | angleščina |
| Izdano: |
Washington :
U.S. Dept. of the Interior, Bureau of Mines,
1979.
|
| Serija: | Report of investigations (United States. Bureau of Mines) ;
8416. |
| Teme: | |
| Oznake: |
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