Columbia subject headings:
Harvard subject headings:
Cultural relations--History--Congresses.
France--Relations--Germany--Congresses.
Germany--Relations--France--Congresses.
Multiculturalism--Europe--Congresses
Multiculturalism--History--Congresses.
Princeton subject headings:
Cultural relations--History--Congresses.
France--Relations--Germany--Congresses.
Germany--Relations--France--Congresses.
Multiculturalism--Europe--Congresses.
Multiculturalism--History--Congresses.