World Bank. (2007). Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. The World Bank.
Chicago-viite (17. p.)World Bank. Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. Washington, D.C: The World Bank, 2007.
MLA-viite (9. p.)World Bank. Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. The World Bank, 2007.
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