Agrarian research and training institute Gooneratne, W. Olesiak, K.P. Samad, M.
group production: A case study of an experiment conducted in beminiwatte in the Kegalle district of Sri Lanka / W.Gooneratne, K.P.Olesiak, M.Samad - Colombo Agrarian research and training institute 1977 - 55 p. - Occasional publication no.14 .
69173
338 / SRI
group production: A case study of an experiment conducted in beminiwatte in the Kegalle district of Sri Lanka / W.Gooneratne, K.P.Olesiak, M.Samad - Colombo Agrarian research and training institute 1977 - 55 p. - Occasional publication no.14 .
69173
338 / SRI