The economic and social council - united nations. (1959). Survey of the Main Trends of Scientific research and Dissemination of scientific Knowledge in U.A.R. societe national de publicite (SOP press).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)The economic and social council - united nations. Survey of the Main Trends of Scientific Research and Dissemination of Scientific Knowledge in U.A.R. Cairo: societe national de publicite (SOP press), 1959.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)The economic and social council - united nations. Survey of the Main Trends of Scientific Research and Dissemination of Scientific Knowledge in U.A.R. societe national de publicite (SOP press), 1959.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.