000			00478pam a2200169a 44500
008			160408b1980 xxu||||| |||| 00| 0 eng d
082			_a628.3 _bEc55p
100			_aEckenfelder, William Wesley
245	1		_aPRINCIPLES OF WATER QUALITY MANAGEMENT
260			_aBoston, Mass. _bCbi Pub. _c1980
300			_aix,717
500			_aBibliography : P. 688-705
650			_aSewage -- Purification
650			_aWater Quality Management
964			_gCIRC
997			_aA68981 C
999			_c300366 _d300366