000			00620nam a2200181Ia 4500
008			130910s9999 xx 000 0 und d
020			_a0070642141
041			_aeng
082			_221st ed. _a628.162 _bTHO/S
100			_aThomann, Robert V.
245			_aSystems analysis and water quality management _c[by] Robert V. Thomann
260			_aNew York : _bMcGraw-Hill Book Company , _c1972
300			_axvi, 277p
504			_aIndex: pp 279-86
505			_aContents: Pt. 1. The problem setting - Pt. 2. The physical enviroment - Pt. 3. The socio - economic enviroment.
653			_aWater quality management
942			_cEN _2ddc
999			_c7769 _d7769