Columbia subject headings:
Harvard subject headings:
European Union countries--Economic integration--Congresses.
European Union countries--Foreign economic relations--Switzerland--Congresses.
European Union countries--Foreign relations--Switzerland--Congresses.
Switzerland--Foreign economic relations--European Union countries--Congresses.
Switzerland--Foreign relations--European Union countries--Congresses.
Princeton subject headings:
European Economic Community--Switzerland--Congresses.
European Union countries--Relations--Switzerland--Congresses.
Switzerland--Relations--European Union countries--Congresses.