000 nam a22 7a 4500
999 _c3998
_d3998
003 Biblioteca INTEMIN
005 20180604180843.0
007 ta
008 180527b xxu||||| |||| 00| 0 eng d
041 _ainglés
080 _a55
100 _aMoebs, Noel N.
_93547
245 _aGeologic and ground-control aspects of an experimental shortwall operation in the upper Ohio Valley
_cMoebs, Noel N.; Curth, Ernest A.
260 _aWashington
_bBureau of mines
_c1976
300 _a30 p.
440 _aRI 8112
_97181
650 _aGEOLOGIA
_93338
650 _aGEOLOGY
_92163
651 _aOHIO RIVER VALLEY REGION (UNITED STATES)
_98241
653 _aMINAS DE CARBON
653 _aMINERIA
653 _aGEOLOGIA MINERAL
653 _aCOAL MINES
653 _aMINING
653 _aMINING GEOLOGY
700 _aCurth, Ernest A.
_98240
942 _2udc
_cCR