World Bank & ebrary, Inc. (2013). The little data book on information and communication technology. World Bank.
Chicagoスタイル(17版)引用形式World Bank , Inc ebrary. The Little Data Book on Information and Communication Technology. Washington, DC: World Bank, 2013.
MLA(9版)引用形式World Bank , Inc ebrary. The Little Data Book on Information and Communication Technology. World Bank, 2013.
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