000 00325nam a2200121Ia 4500
008 250409s9999 xx 000 0 und d
020 _a0
082 _a660.284
_bCHA
100 _aChattopadhyay,P.
245 0 _aUnit operations of chemical engineering Vol.1
260 _aVidhyanagar
_bKhanna Pub Delhi
_c1998
365 _a225
999 _c248062
_d248062