000			00424nam a2200157Ia 4500
008			210707s1982 xx 000 0 und d
041			_aeng
082			_a614 SUNW
100			_aSUNDARESAN and others.
245			_aWater water treatment.
260			_aNagpur _bNational environmental engineering research institute _c1982
300			_aviii,472 p
563			_aPB
650			_aHealth
906			_aWaste water treatment
999			_c180284 _d180284