000 00244nam a2200097Ia 4500
008 230508s2002 xx 000 0 und d
041 _aeng
100 _aO.P.GUPTA
245 _aCHEMICAL ENGG.OBJECTIVE TYPE
260 _bKHANNA PUBLI.NEW DEL
_c2002
999 _c714162
_d714162