Farrington, J.Abeyratne, F.Ryan, M.Bandara, S.Agrarian Research and Training Institute2014-07-182014-07-181980https://dl-harti.nsf.gov.lk//handle/1/2449xvii, 215p.Farm PowerSri LankaResearch MethodsFarm power and water use in the dry zone, part l:study methodology and some preliminary results