National Planning Association. Special Policy Committee on Technical Cooperation. (1956). Technical cooperation in Latin America: Recommendations for the future.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Planning Association. Special Policy Committee on Technical Cooperation. Technical Cooperation in Latin America: Recommendations for the Future. Washington, 1956.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Planning Association. Special Policy Committee on Technical Cooperation. Technical Cooperation in Latin America: Recommendations for the Future. 1956.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.