000 00477 a2200157 4500
020 _a9558177377
082 _a333.913
_bPER
090 _c6592
_d9096
100 _aPerera, H.D.B.S.
245 _aMultiple benefits of small irrigation tanks and their economic value
_ba case study in the kala oya basin, Sri Lanka
260 _aColombo
_bIUCN
_c2005
_g2005
300 _a34p.
_c29cm.
650 _aWATER FOR IRRIGATION
700 _aVidanage, S.P.; Kallesoe, M.F.
942 _cL
999 _c35348
_d35348