2010-07-062010-07-061975https://dl.nsf.gov.lk/handle/1/5280Food CropsEssential OilsEssential SpicesMedicinal PlantsPlant-derived PharmaceuticalsMarine Natural ProductsExotic PlantsEndangered PlantsAgricultureNatural products for Sri Lanka's future:report of a workshop held 2-6 June 1975, Colombo.