000 00286nam a2200121Ia 4500
008 211209s1991 xx 000 0 und d
041 _aeng
082 _a660
100 _aRAM PRASAD
245 _aCHEMICAL ENGINEERING
260 _aNEW DELHI
_bKHANNA PUBLISHERS
_c1991
300 _a368
999 _c102051
_d102051