World Bank. (2007). Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. The World Bank.
Chicago-referens (17:e uppl.)World Bank. Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. Washington, D.C: The World Bank, 2007.
MLA-referens (9:e uppl.)World Bank. Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. The World Bank, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.