Abeyratne, S.ed.Ganewatta, P.ed.Merrey, D.ed.Agrarian Research and Training Institute2014-07-182014-07-181986https://dl-harti.nsf.gov.lk//handle/1/2278viii, 333p.Water ManagementSri LankaProceeding of a workshop on water management in Sri Lanka, January 20-22 1982