United Nations Development Programme & World Bank. (2006). ًWorld Development Indicators 2006. United Nations Development Programme ; World Bank.
Chicagoスタイル(17版)引用形式United Nations Development Programme , World Bank. ًWorld Development Indicators 2006. New York, N.Y. : Washington, D.C.: United Nations Development Programme ; World Bank, 2006.
MLA(9版)引用形式United Nations Development Programme , World Bank. ًWorld Development Indicators 2006. United Nations Development Programme ; World Bank, 2006.
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