Columbia subject headings:
European Union--Commerce--United States.
European Union--Commercial policy.
European Union--Foreign economic relations--United States.
United States--Commerce--European Union countries.
United States--Commercial policy.
United States--Foreign economic relations--European Union countries.
Harvard subject headings:
European Union countries--Commerce--United States.
European Union countries--Foreign economic relations--United States.
United States--Commerce--European Union countries.
United States--Foreign economic relations--European Union countries.
Princeton subject headings:
European Union countries--Commerce--United States.
European Union countries--Foreign economic relations--United States.
United States--Commerce--European Union countries.
United States--Foreign economic relations--European Union countries.