Organisation for Economic Co-operation and Development. (1986). OECD economic surveys: Belgium-Luxembourg. Organisation for Economic Co-Operation and Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development. OECD Economic Surveys: Belgium-Luxembourg. Paris, France: Organisation for Economic Co-Operation and Development, 1986.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development. OECD Economic Surveys: Belgium-Luxembourg. Organisation for Economic Co-Operation and Development, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.