Columbia subject headings:
Germans--Romania--Congresses.
Hungarians--Romania--Congresses.
Minorities--Romania--Congresses.
Romania--Race relations--Congresses.
Harvard subject headings:
Germans--Romania--Congresses.
Hungarians--Romania--Congresses.
Minorities--Romania--Congresses.
Romania--Race relations--Congresses.
Princeton subject headings:
Germans--Romania--Congresses.
Hungarians--Romania--Congresses.
Minorities--Romania--Congresses.
Romania--Ethnic relations--Congresses.