000			00304nam a2200109Ia 4500
008			200302s9999 xx 000 0 und d
100			_aGeorge Smethurst
245			_aBasic Water Treatment for Application world-wide 2nd ed.,
260			_bIBT Publishers & Destributors
260			_c1998
300			_a212 P.,
999			_c3947 _d3947