APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Noumba Um, Paul. A Model for Calculating Interconnection Costs in Telecommunications. Washington, D.C ; s.l: PPIAF, 2004.

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.