Cita APA

Valletti, T. M. (1999). The practice of access pricing: Telecommunications in the United Kingdom. Washington, D.C.: The World Bank.

Citación estilo Chicago

Valletti, Tommasso M. The Practice of Access Pricing: Telecommunications in the United Kingdom. Washington, D.C.: The World Bank, 1999.

Cita MLA

Valletti, Tommasso M. The Practice of Access Pricing: Telecommunications in the United Kingdom. Washington, D.C.: The World Bank, 1999.