World Bank. (2000). African Development Indicators 2000. the international bank for reconstruction and development.
Cytowanie według stylu Chicago (wyd. 17)World Bank. African Development Indicators 2000. Washington: the international bank for reconstruction and development, 2000.
Cytowanie według stylu MLA (wyd. 9)World Bank. African Development Indicators 2000. the international bank for reconstruction and development, 2000.