Limao, N., & Venables, A. (1999). Geographical Disadvantage: A Heckscher-Ohlin-Von Thunen model of International Specialization. CEPR.
Čikaški stil citiranja (17. izdanje)Limao, N., i A. Venables. Geographical Disadvantage: A Heckscher-Ohlin-Von Thunen Model of International Specialization. CEPR, 1999.
MLA način citiranja (9. izdanje)Limao, N., i A. Venables. Geographical Disadvantage: A Heckscher-Ohlin-Von Thunen Model of International Specialization. CEPR, 1999.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.