000			004320000a22001690004500
245			_aWater and wastewater engineering systems
100			_aBarnes, D. ... [et al.]
260			_aLondon _bPitman Pub. _c1981
300			_axvi, 513p.
020			_a0273011383
080			_a628.1 _bW3
650			_aWATER SUPPLY ENGINEERING
650			_aSEWAGE DISPOSAL
650			_aSEWAGE PURIFICATION
041			_aEN
942			_cBK _02
999			_c113958 _d113958