Frankel, J. A., Stein, E., & Wei, S. (1997). Regional trading blocs in the world economic system. Institute for International Economics.
Chicago-čujuhus (17. p.)Frankel, Jeffrey A., Ernesto Stein, juo Shang-Jin Wei. Regional Trading Blocs in the World Economic System. Washington, DC: Institute for International Economics, 1997.
MLA-čujuhus (9. p.)Frankel, Jeffrey A., et al. Regional Trading Blocs in the World Economic System. Institute for International Economics, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.