Columbia subject headings:
European Union countries--Commerce--United States.
Foreign trade regulation.
United States--Commerce--European Union countries.
World Trade Organization.
Harvard subject headings:
European Union
European Union countries--Commerce--United States.
European Union countries--Foreign economic relations--United States.
Foreign trade regulation--European Union countries.
Foreign trade regulation--United States.
Foreign trade regulation.
United States--Commerce--European Union countries.
United States--Foreign economic relations--European Union countries.
World Trade Organization
Princeton subject headings:
European Union countries--Commerce--United States.
European Union.
Foreign trade regulation.
United States--Commerce--European Union countries.
World Trade Organization.