Monographs

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Fram power and water use in the dry zone:part ll
(Hector Kobbeduwa Agrarian Research and Training Institute:Colombo, 1982) Farrington, John; Abeyratne, Fredrick; Agrarian Research and Training Institute
Farm power and water use in the dry zone, part l:study methodology and some preliminary results
(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1980) Farrington, J.; Abeyratne, F.; Ryan, M.; Bandara, S.; Agrarian Research and Training Institute
Farm power and water use in the dry zone:part II
(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1982) Farrington, J.; Abeyratne, F.; Hector Kobbekaduwa Agrarian Research and Training Institute