Cita APA (7th ed.)
ebrary, Inc, & Noumba Um, P. (2004). A model for calculating interconnection costs in telecommunications. World Bank.
Cita Chicago (17th ed.)
ebrary, Inc, i Paul Noumba Um. A Model for Calculating Interconnection Costs in Telecommunications. Washington, DC: World Bank, 2004.
Cita MLA (9th ed.)
ebrary, Inc, i Paul Noumba Um. A Model for Calculating Interconnection Costs in Telecommunications. World Bank, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.