Royal Institute of International Affairs. Information Department & London and Cambridge Economic Service. (1972). South-eastern Europe: A political and economic survey. Johnson Reprint Corp..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Royal Institute of International Affairs. Information Department و London and Cambridge Economic Service. South-eastern Europe: A Political and Economic Survey. [New York: Johnson Reprint Corp., 1972.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Royal Institute of International Affairs. Information Department و London and Cambridge Economic Service. South-eastern Europe: A Political and Economic Survey. Johnson Reprint Corp., 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.