Environmental and social constraints on paddy production in under existing conditions: a case study in Hambantota District , Sri Lanka 1974

Izumi, K.Ranatunga, A.S.2014-03-032014-03-031974-02Environmental and social constraints on paddy production..., p.1-32https://dl-harti.nsf.gov.lk/handle/1/1459enEnvironmental and social constraints on paddy production in under existing conditions: a case study in Hambantota District , Sri Lanka 1974Book