Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.