United States. Agency for International Development. (1976). Opportunity for self-reliance: An overview of the Sahel development potential. Agency for International Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Agency for International Development. Opportunity for Self-reliance: An Overview of the Sahel Development Potential. Washington: Agency for International Development, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Agency for International Development. Opportunity for Self-reliance: An Overview of the Sahel Development Potential. Agency for International Development, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.