Agrarian research and training institute
A Study of five settlement schemes prior to irriagation modernization / - Colombo Agrarian research and training institute 1980 - v, 70 p. - Research study No.42 .
69178
333.76 / SRI
A Study of five settlement schemes prior to irriagation modernization / - Colombo Agrarian research and training institute 1980 - v, 70 p. - Research study No.42 .
69178
333.76 / SRI