| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c2866 _d2866 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180522235018.0 | ||
| 008 | 180522b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.51 | ||
| 100 |
_aChekan, Gregory J. _96596 |
||
| 245 |
_aDesign of bulkheads for controlling water in underground mines _cChekan, Gregory J. |
||
| 260 |
_aWashington _bBureau of mines _c1985 |
||
| 650 |
_aMINERIA _965 |
||
| 650 |
_aAGUA SUBTERRANEA _95435 |
||
| 942 | _cBK | ||