000 00304nam a2200109Ia 4500
008 240521s1999 xx 000 0 und d
041 _aeng
100 _aPUNMIA B.C. & JAIN A.K.
245 _aENVIRONMENTAL ENGINEERING WASTE WATER ENGINEERING INCLUDING AIR POLLUTION.
260 _c1999
300 _a660
999 _c1159301
_d1159301