Weeramantry, C. G.
Environmental aspects of Sri Lanka's ancient irrigation system C. G. Weeramantry - Ratmalana A Sarvodaya vishva lekha 2000 - 35 p.
631.587 / WEE
Environmental aspects of Sri Lanka's ancient irrigation system C. G. Weeramantry - Ratmalana A Sarvodaya vishva lekha 2000 - 35 p.
631.587 / WEE