000 nam a22 7a 4500
999 _c3847
_d3847
003 Biblioteca INTEMIN
005 20180531164425.0
007 ta
008 180527b xxu||||| |||| 00| 0 eng d
041 _ainglés
080 _a622
100 _aHaver, Frank P.
_93547
245 _aImprovements in ferric chloride leaching of chalcopyrite concentrate
_cHaver, Frank P.; Baker, Richard D.
260 _aWashington
_bBureau of mines
_c1975
300 _a16 p.
440 _aRI 8007
_97181
650 _aMINERIA
_93338
650 _aMINING
_92163
653 _aCALCOPIRITA
653 _aCHALCOPYRITE
700 _aBaker, Richard D.
_98046
942 _2udc
_cCR