Society for International Development. North-South Roundtable & Foster, J. (1981). Energy for development, an international challenge: Prepared for the North-South Roundtable of the Society for International Development. Praeger.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Society for International Development. North-South Roundtable و John Foster. Energy for Development, an International Challenge: Prepared for the North-South Roundtable of the Society for International Development. New York: Praeger, 1981.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Society for International Development. North-South Roundtable و John Foster. Energy for Development, an International Challenge: Prepared for the North-South Roundtable of the Society for International Development. Praeger, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.