000 00265nam a2200121Ia 4500
999 _c8638
_d8638
020 _a0070651760
100 _aRobert E Treybal
245 _aMass Transfer Operations
250 _a3
260 _c1980
_bMcGRAW HILL PUB.
_aNew Delhi
300 _axiv+784
942 _cBK