Frankel, J. A., Stein, E., & Wei, S. (1997). Regional trading blocs in the world economic system. Institute for International Economics.
Citazione stile Chigago Style (17a edizione)Frankel, Jeffrey A., Ernesto Stein, e Shang-Jin Wei. Regional Trading Blocs in the World Economic System. Washington, DC: Institute for International Economics, 1997.
Citatione MLA (9a ed.)Frankel, Jeffrey A., et al. Regional Trading Blocs in the World Economic System. Institute for International Economics, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.