Wallsten, S. J. (2000). Telecom traffic and investment in developing countries: The effects of international settlement rate reductions. World Bank.
Citace podle Chicago (17th ed.)Wallsten, Scott J. Telecom Traffic and Investment in Developing Countries: The Effects of International Settlement Rate Reductions. Washington, DC: World Bank, 2000.
Citace podle MLA (9th ed.)Wallsten, Scott J. Telecom Traffic and Investment in Developing Countries: The Effects of International Settlement Rate Reductions. World Bank, 2000.
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