United Nations. Department of Economic and Social Affairs. (1970). Methods of measuring internal migration. United Nations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United Nations. Department of Economic and Social Affairs. Methods of Measuring Internal Migration. New York: United Nations, 1970.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United Nations. Department of Economic and Social Affairs. Methods of Measuring Internal Migration. United Nations, 1970.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.