World Bank. (2002). African Development Indicators 2002. the international bank for reconstruction and development.
Chicagoスタイル(17版)引用形式World Bank. African Development Indicators 2002. Washington: the international bank for reconstruction and development, 2002.
MLA(9版)引用形式World Bank. African Development Indicators 2002. the international bank for reconstruction and development, 2002.
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