World Bank. African development indicators. International Bank for Reconstruction and Development / The World Bank.
Lua i Stíl Chicago (17ú heag.)World Bank. African Development Indicators. Washington, D.C.: International Bank for Reconstruction and Development / The World Bank.
Lua MLA (9ú heag.)World Bank. African Development Indicators. International Bank for Reconstruction and Development / The World Bank.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.