000 00668nam a2200205zi 4500
005 20220307101018.0
008 970106s1913 000 0 eng
035 _aMX001000510942
050 _aTN263
_bE57
100 1 _aEmmons, William H.
_q(William Harvey),
_d1876-
_eautor
245 1 4 _aThe enrichment of suplhide ores /
_cBy William harvey emmons
264 1 _aWashington, D.C. :
_bGovernment printing office,
_c1913
300 _a260 páginas
490 0 _aE. u. geological survey. bulletin ;
_v529
650 _aSulfuros
336 _atexto
_2rdacontent
337 _asin medio
_2rdamedia
338 _avolumen
_2rdacarrier
999 _c3004
_d3004