APA (7th ed.) Citation

Krugman, P., & Venables, A. (1995). The Seamless World: A Spatial Model of International Specialization. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Krugman, P., and A. Venables. The Seamless World: A Spatial Model of International Specialization. National Bureau of Economic Research, 1995.

MLA (9th ed.) Citation

Krugman, P., and A. Venables. The Seamless World: A Spatial Model of International Specialization. National Bureau of Economic Research, 1995.