APA (7th ed.) Zitazioa
(2014). Little data book on information and communication technology 2014. The World Bank : ITU.
Chicago Style (17th ed.) Zitazioa
Little Data Book on Information and Communication Technology 2014. Washington, District of Columbia: The World Bank : ITU, 2014.
MLA (9th ed.) Zitazioa
Little Data Book on Information and Communication Technology 2014. The World Bank : ITU, 2014.
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