000 00319nam a2200121Ia 4500
008 211209s1985 xx 000 0 und d
041 _aeng
082 _a669.2 RAY
100 _aRAY, H S
245 _aEXTRACTION OF NON FERROUS METALS
260 _aNEW DELHI
_bAFFILIATED EAST-WEST PRESS PVT. LTD.
_c1985
300 _a531
999 _c24687
_d24687