watkin, e. (1964). some notes on the nationalized industries of u.a.r. and their pricing policies. the institute of national planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)watkin, e.e. Some Notes on the Nationalized Industries of U.a.r. and Their Pricing Policies. cairo: the institute of national planning, 1964.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)watkin, e.e. Some Notes on the Nationalized Industries of U.a.r. and Their Pricing Policies. the institute of national planning, 1964.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.