000 00323pab a2200145 454500
008 180718b1987 xxu||||| |||| 00| 0 eng d
100 _aUnvala, S.P.
245 _aChallenges for the future
260 _c1987
300 _a17-29
362 _aJuly
650 _aWater Supply
773 _aCivic Affairs
909 _a20613
999 _c20613
_d20613