000 00468nam#a2200181ua#4500
001 GOACATREC29978
900 0 0 _a19990904
901 0 0 _aENG
020 0 0 _a9241544716
903 0 0 _a71511
245 0 0 _aOperation and Maintenance of Urban Water Supply and Sanitation Systems
110 0 0 _aWorld Health Organisation
902 0 0 _a658.28
650 0 0 _aWater Supply
650 0 0 _aSanitation
650 0 0 _aMaintenance
260 0 0 _aGeneva
_bWorld Health Organisation
_c1994
999 _c30007
_d30007