Columbia subject headings:
Harvard subject headings:
European Economic Community--Portugal.
European Union countries--Foreign economic relations--Portugal.
European Union--Portugal.
Eurozone.
Portugal--Economic conditions--21st century.
Portugal--Foreign economic relations--European Union countries.
Princeton subject headings:
European Union countries--Foreign economic relations--Portugal.
Eurozone.
Portugal--Economic conditions--21st century.
Portugal--Foreign economic relations--European Union countries.