CDC annual conference on population, development and youth issues in developing countries. Cairo, Cairo Demographic Centre, & Hassan, S. S. (2002). /Population, development and youth issues in developing countries, 26-28 December, 2001. Cairo Demographic Center.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)CDC annual conference on population, development and youth issues in developing countries. Cairo, Cairo Demographic Centre, و Shafick S. Hassan. /Population, Development and Youth Issues in Developing Countries, 26-28 December, 2001. Cairo: Cairo Demographic Center, 2002.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)CDC annual conference on population, development and youth issues in developing countries. Cairo, et al. /Population, Development and Youth Issues in Developing Countries, 26-28 December, 2001. Cairo Demographic Center, 2002.