000 00328nam a2200121Ia 4500
001 MPKV057838
008 120911s9999 xx 000 0 und d
082 _a631.7
245 _aWater Services Vol.78 No.935-946
_c;
246 _aWater Services Vol.78 No.935-946
260 _aLondon
_bJohn Adam House
_c1974
650 _aEntomology
999 _c55828
_d55828