APA引文

Noumba Um, P. (2004). A model for calculating interconnection costs in telecommunications. World Bank : PPIAF.

Chicago Style (17th ed.) Citation

Noumba Um, Paul. A Model for Calculating Interconnection Costs in Telecommunications. Washington, D.C.: World Bank : PPIAF, 2004.

MLA引文

Noumba Um, Paul. A Model for Calculating Interconnection Costs in Telecommunications. World Bank : PPIAF, 2004.

警告：這些引文格式不一定是100％准確.