Dyfyniad APA

Frankel, J. A., Stein, E., & Wei, S. (1997). Regional trading blocs in the world economic system. Institute for International Economics.

Dyfyniad Arddull Chicago

Frankel, Jeffrey A., Ernesto Stein, and Shang-Jin Wei. Regional Trading Blocs in the World Economic System. Washington, DC: Institute for International Economics, 1997.

Dyfyniad MLA

Frankel, Jeffrey A., et al. Regional Trading Blocs in the World Economic System. Institute for International Economics, 1997.

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