(1971). The brain drain from five developing countries: Cameron, Colombia, Lebanon, The Philippines, Trinidad and Tobago. The United Nations Institute for Training and Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)The Brain Drain from Five Developing Countries: Cameron, Colombia, Lebanon, The Philippines, Trinidad and Tobago. New York: The United Nations Institute for Training and Research, 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)The Brain Drain from Five Developing Countries: Cameron, Colombia, Lebanon, The Philippines, Trinidad and Tobago. The United Nations Institute for Training and Research, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.