Wallsten, S. J. (2000). Telecom traffic and investment in developing countries: The effects of international settlement rate reductions. World Bank.
Citazione stile Chigago Style (17a edizione)Wallsten, Scott J. Telecom Traffic and Investment in Developing Countries: The Effects of International Settlement Rate Reductions. Washington, DC: World Bank, 2000.
Citatione MLA (9a ed.)Wallsten, Scott J. Telecom Traffic and Investment in Developing Countries: The Effects of International Settlement Rate Reductions. World Bank, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.