00815nam a22002297a 4500 LK-CoMWRAF 20231215121042.0 231215b2001 |||||||| |||| 00| 0 eng d 9559760505 LK-CoMWRAF LK-CoMWRAF LK-CoMWRAF eng 631.45 MEN Mendis , D.L.O. Evolution and development of water and soil conservation ecosystems- from ancient dry zone forest garden to modern Jaffna market garden 52nd annual sessions of the Sri Lanka association for the advancement of science Ratmalana: Sri Lanka Pugwash group, 2001 92 p.; 21 cm. Ill. maps seminar aesthetics in science WATER AND SOIL CONSERVATION Eco systems- Sri Lanka BK 0 0 0 0 MAIN MAIN 2023-12-15 0 631.45 MEN RAF4562 2023-12-15 2023-12-15 BK 4483 4483