Thorbecke, E., & Svejnar, J. (1987). Economic policies and agricultural performance in Sri Lanka, 1960-1984. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Thorbecke, Erik, و Jan Svejnar. Economic Policies and Agricultural Performance in Sri Lanka, 1960-1984. Paris, France : [Washington, D.C.: Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor], 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Thorbecke, Erik, و Jan Svejnar. Economic Policies and Agricultural Performance in Sri Lanka, 1960-1984. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Centre, distributor], 1987.