000 00336nam a2200121Ia 4500
008 211209s1979 xx 000 0 und d
041 _aeng
082 _a628.3 N79 MET/EDD
100 _aMETCALZ
245 _aWASTE WATER ENGINEERING: TREATMENT- DISPOSAL
260 _aNEW DELHI
_bTATA MCGRAW-HILL PUB. COMPANY LTD.
_c1979
300 _a946
999 _c17299
_d17299