Organization for European Economic Cooperation. European Productivity Agency. (1961). Series of lectures on economic growth, University of Madrid, January-February, 1961. O.E.C.D.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organization for European Economic Cooperation. European Productivity Agency. Series of Lectures on Economic Growth, University of Madrid, January-February, 1961. [Paris: O.E.C.D, 1961.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organization for European Economic Cooperation. European Productivity Agency. Series of Lectures on Economic Growth, University of Madrid, January-February, 1961. O.E.C.D, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.