Cita APA (7th ed.)

Venables, A., & Lim-ao, N. (1999). Geographical disadvantage: A Hecksher-Ohlin-von Thunen model of international specialization. Trade, Development Research Group, World Bank.

Cita Chicago (17th ed.)

Venables, Anthony, i Nuno Lim-ao. Geographical Disadvantage: A Hecksher-Ohlin-von Thunen Model of International Specialization. Washington, D.C: Trade, Development Research Group, World Bank, 1999.

Cita MLA (9th ed.)

Venables, Anthony, i Nuno Lim-ao. Geographical Disadvantage: A Hecksher-Ohlin-von Thunen Model of International Specialization. Trade, Development Research Group, World Bank, 1999.