Venables, A., & Lim-ao, N. (1999). Geographical disadvantage: A Hecksher-Ohlin-von Thunen model of international specialization. Trade, Development Research Group, World Bank.
Chicago-viite (17. p.)Venables, Anthony, ja Nuno Lim-ao. Geographical Disadvantage: A Hecksher-Ohlin-von Thunen Model of International Specialization. Washington, D.C: Trade, Development Research Group, World Bank, 1999.
MLA-viite (9. p.)Venables, Anthony, ja Nuno Lim-ao. Geographical Disadvantage: A Hecksher-Ohlin-von Thunen Model of International Specialization. Trade, Development Research Group, World Bank, 1999.
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