Joswig. (1970). Priority Problems in The Growth Process of Developing Countries. The Institute of National Planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Joswig. Priority Problems in The Growth Process of Developing Countries. Cairo: The Institute of National Planning, 1970.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Joswig. Priority Problems in The Growth Process of Developing Countries. The Institute of National Planning, 1970.