World Bank. (2007). Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. The World Bank.
Chicagoスタイル(17版)引用形式World Bank. Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. Washington, D.C: The World Bank, 2007.
MLA(9版)引用形式World Bank. Africa Development Indicators 2007: Spreading and Sustaining Growth in Africa. The World Bank, 2007.
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