Columbia subject headings:
Harvard subject headings:
Citizenship--Europe--Congresses.
Europe--Economic integration--Congresses.
European communities--Congresses.
European communities--Public opinion--Congresses.
National characteristics, European--Congresses.
Princeton subject headings:
Citizenship--Europe--Congresses.
Europe--Economic integration--Congresses.
European communities--Congresses.
European communities--Public opinion--Congresses.
National characteristics, European--Congresses.