World Bank. (2002). African Development Indicators 2002. the international bank for reconstruction and development.
Cita Chicago (17th ed.)World Bank. African Development Indicators 2002. Washington: the international bank for reconstruction and development, 2002.
Cita MLA (9th ed.)World Bank. African Development Indicators 2002. the international bank for reconstruction and development, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.