000 00284nam a2200121 a 4500
003 EIA
001 3828
942 _02
_2ddc
_cBK
245 _aCyanidation and concentration gold and silver ores
260 _c1936
008 141112s1936 ck r 000 u spa d
082 _a669.962
_bD716
999 _c2869
_d2869