Columbia subject headings:
Europe, Central--Foreign economic relations--European Union countries--Congresses.
Europe, Eastern--Foreign economic relations--European Union countries--Congresses.
Europe--Economic integration--Congresses.
European Union countries--Foreign economic relations--Europe, Central--Congresses.
European Union countries--Foreign economic relations--Europe, Eastern--Congresses.
Harvard subject headings:
Europe, Central--Foreign economic relations--European Union countries--Congresses.
Europe, Eastern--Foreign economic relations--European Union countries--Congresses.
Europe--Economic integration--Congresses.
European Union countries--Foreign economic relations--Europe, Central--Congresses.
European Union countries--Foreign economic relations--Europe, Eastern--Congresses.
Princeton subject headings:
Europe, Central--Foreign economic relations--European Union countries--Congresses.
Europe, Eastern--Foreign economic relations--European Union countries--Congresses.
Europe--Economic integration--Congresses.
European Union countries--Foreign economic relations--Europe, Central--Congresses.
European Union countries--Foreign economic relations--Europe, Eastern--Congresses.