Mendis, D.L.O.
Annual sessions of the Sri Lanka Association for the advancement of science
Evolution and development of water and soil conservation ecosystems - from ancie / D L. O Mendis - [S.l] Sri Lanka Pugwash Group 2001 - 92 p.
9559760505
Water conservation
Soil conservation-economic aspects
Irrigation farmaing-economic aspects
Ecosystems
333.913 / ANN
Annual sessions of the Sri Lanka Association for the advancement of science
Evolution and development of water and soil conservation ecosystems - from ancie / D L. O Mendis - [S.l] Sri Lanka Pugwash Group 2001 - 92 p.
9559760505
Water conservation
Soil conservation-economic aspects
Irrigation farmaing-economic aspects
Ecosystems
333.913 / ANN