| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c2843 _d2843 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180522225945.0 | ||
| 008 | 180522b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622:551.3.051.8 | ||
| 100 |
_aDalzell, Robert S. _96567 |
||
| 245 |
_aRemedial and strata replacement technique on longwall faces _cDalzell, Robert S. |
||
| 260 |
_aWashington _bBureau of mines _c1985 |
||
| 650 |
_aMINERIA _965 |
||
| 650 |
_aESTRATIFICACION _96568 |
||
| 650 |
_aPOZOS PROFUNDOS _96569 |
||
| 942 | _cBK | ||