Organisation for Economic Co-operation and Development. Development Centre, Helmich, H., & Foy, C. (1996). Public support for international development. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Center, distributor].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development. Development Centre, Henny Helmich, و Colm Foy. Public Support for International Development. Paris : [Washington, D.C.: Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Center, distributor], 1996.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development. Development Centre, et al. Public Support for International Development. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Center, distributor], 1996.