World Bank. (2002). African Development Indicators 2002. the international bank for reconstruction and development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Bank. African Development Indicators 2002. Washington: the international bank for reconstruction and development, 2002.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)World Bank. African Development Indicators 2002. the international bank for reconstruction and development, 2002.