000 00305pam a2200109a 44500
082 _aTR
_bRI-9381
100 _aP. S. Sandoval
245 1 _aEffect of nonionic surfactants on chalcopyrite leaching under dump chemical conditions,part-2
260 _a
_b
_c
700 _aE. L. Schultze
997 _aTR6779 C
999 _c405934
_d405934