World Bank, International Telecommunication Union, & ebrary, Inc. (2012). The little data book on information and communication technology 2012. World Bank.
Citace podle Chicago (17th ed.)World Bank, International Telecommunication Union, a Inc ebrary. The Little Data Book on Information and Communication Technology 2012. Washington, D.C.: World Bank, 2012.
Citace podle MLA (9th ed.)World Bank, et al. The Little Data Book on Information and Communication Technology 2012. World Bank, 2012.
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