ENKE, S. (1963). Economics for Development: Applies tools of economic analysis to the problems of underdeveloped countries. Prentice-Hall.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ENKE, Stephen. Economics for Development: Applies Tools of Economic Analysis to the Problems of Underdeveloped Countries. Prentice-Hall, 1963.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)ENKE, Stephen. Economics for Development: Applies Tools of Economic Analysis to the Problems of Underdeveloped Countries. Prentice-Hall, 1963.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.