Columbia subject headings:
Harvard subject headings:
Germans--Romania--Transylvania--History--20th century--Congresses.
Minorities--Romania--Transylvania--History--20th century--Congresses.
Political persecution--Romania--Transylvania--History--20th century--Congresses.
Romania. Securitatea--History--Congresses.
Secret service--Romania--Transylvania--History--20th century--Congresses.
Transylvania (Romania)--Politics and government--20th century--Congresses.
Princeton subject headings:
Germans--Romania--Transylvania--History--20th century--Congresses.
Minorities--Romania--Transylvania--History--20th century--Congresses.
Political persecution--Romania--Transylvania--History--20th century--Congresses.
Romania. Securitatea--History--Congresses.
Secret service--Romania--Transylvania--History--20th century--Congresses.
Transylvania (Romania)--Politics and government--20th century--Congresses.