kronsjo, t. (1964). research on large mathematical systems for economic planning of the united arabic repuclic. the institute of national planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)kronsjo, tom. Research on Large Mathematical Systems for Economic Planning of the United Arabic Repuclic. cairo: the institute of national planning, 1964.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)kronsjo, tom. Research on Large Mathematical Systems for Economic Planning of the United Arabic Repuclic. the institute of national planning, 1964.