The Norwegian Institute of International Affairs. (1963). Economics of Planning: Theory and practice of centrally planned economies and their relations with market economies. The Norwegian Institute of International Affairs.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)The Norwegian Institute of International Affairs. Economics of Planning: Theory and Practice of Centrally Planned Economies and Their Relations with Market Economies. Oslo: The Norwegian Institute of International Affairs, 1963.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)The Norwegian Institute of International Affairs. Economics of Planning: Theory and Practice of Centrally Planned Economies and Their Relations with Market Economies. The Norwegian Institute of International Affairs, 1963.