| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c2382 _d2382 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180518174059.0 | ||
| 008 | 180518b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.03:622.33 | ||
| 100 |
_aJeran, Paul W. _95818 |
||
| 245 |
_aA guide to geologic festures in coal mines in the norhern Appalachian Coal Basin _cJeran, Paul W. |
||
| 260 |
_aWashington _bBureau of mines _c1983 |
||
| 650 |
_aMINERIA _965 |
||
| 650 | 0 |
_95677 _aCARACTERISTICAS GEOLOGICAS |
|
| 650 | 0 |
_95740 _aMINAS DE CARBON |
|
| 942 | _cBK | ||