Cole, S. (1977). Global models and the international economic order: A paper for the United Nations Institute for Training and Research project on the future. Pergamon Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cole, Sam. Global Models and the International Economic Order: A Paper for the United Nations Institute for Training and Research Project on the Future. Oxford, Eng. ; New York: Pergamon Press, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cole, Sam. Global Models and the International Economic Order: A Paper for the United Nations Institute for Training and Research Project on the Future. Pergamon Press, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.