Columbia subject headings:
Harvard subject headings:
Civics, German--Congresses.
Civics--Congresses.
Political science--Study and teaching--Congresses.
Political science--Study and teaching--Germany--Congresses.
Political sociology--Congresses
Political sociology--Germany--Congresses.
Princeton subject headings:
Civics, European--Social aspects--Congresses.
Civics, German--Social aspects--Congresses.
Civics, German--Study and teaching--History--Congresses.
Education and state--Germany--History--Congresses.
Multiculturalism--Political aspects--Europe, Eastern--Congresses.
Multiculturalism--Political aspects--Germany--Congresses.