Frankel, J. A., Stein, E., & Wei, S. (1997). Regional trading blocs in the world economic system. Institute for International Economics.
芝加哥风格引文Frankel, Jeffrey A., Ernesto Stein, 与 Shang-Jin Wei. Regional Trading Blocs in the World Economic System. Washington, DC: Institute for International Economics, 1997.
MLA引文Frankel, Jeffrey A., et al. Regional Trading Blocs in the World Economic System. Institute for International Economics, 1997.
警告：这些引文格式不一定是100％准确.