Whalley, J. (1996). Why do countries seek regional trade agreementsn. National Bureau of Economic Research.
Citace podle Chicago (17th ed.)Whalley, John. Why Do Countries Seek Regional Trade Agreementsn. Cambridge: National Bureau of Economic Research, 1996.
Citace podle MLA (9th ed.)Whalley, John. Why Do Countries Seek Regional Trade Agreementsn. National Bureau of Economic Research, 1996.
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