000 00323nam a2200121Ia 4500
008 211209s1971 xx 000 0 und d
041 _aeng
082 _a628.1 N81 FAI
100 _aFAIR G M
245 _aELEMENTS OF WATER SUPPLY AND WASTE-WATER DISPOSAS
260 _aNEW DELHI
_bJOHN WILEY AND SONS
_c1971
300 _a762
999 _c21602
_d21602