000 00284nam a2200109Ia 4500
008 160710s1981 xx 000 0 und d
082 _a628.1 FEA
245 _aAPPOPRIATE TECHNOLOGY FOR WATER WUPPLY AND SANITATION
260 _bTHE WORLD BANK
_c1981
300 _a318
942 _2ddc
_cB
999 _c46063
_d46063