000 00326nam a2200121Ia 4500
008 190415s9999 xx 000 0 und d
082 _aRG.010;
100 _aGunawardana, A.M.T.
245 0 _aWater management under small village tanks : A paper based on experiences in wat
260 _c1981
300 _a31p.
942 _cBK
999 _c22802
_d22802