APA (7th ed.) Zitazioa
ebrary, Inc, & Rossotto, C. M. (2004). Competition in international voice communications. World Bank.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Carlo Maria Rossotto. Competition in International Voice Communications. Washington, DC: World Bank, 2004.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Carlo Maria Rossotto. Competition in International Voice Communications. World Bank, 2004.
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