Columbia subject headings:
Harvard subject headings:
Romani Genocide, 1939-1945
Romanies--Europe--History--20th century--Congresses.
Romanies--Europe--History--Congresses.
Romanies--Europe--Politics and government--Congresses.
Romanies--Study and teaching--Europe--History--Congresses.
Princeton subject headings:
Romanies--Europe--History--20th century--Congresses.
Romanies--Study and teaching--Europe--History--Congresses.