Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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