OO Brasil e a OMCO Brasil e a OMCde Welber Oliveira BarralMateriasForeign economic relationsForecastingEconomic conditionsForeign trade regulationWorld Trade OrganizationEdiciones (2)O Brasil e a OMC (2007)Juruá Ed. · portugués · ISBN 9788536201986O Brasil e a OMC (2000)Editora Diploma Legal · portuguésMás obras de Welber Oliveira Barral