Columbia subject headings:
Harvard subject headings:
Europe--Ethnic relations.
Germany--Ethnic relations.
Romanies--Europe--Social conditions.
Romanies--Germany--Social conditions.
Romanies--Political activity--Europe.
Romanies--Political activity--Germany.
Princeton subject headings:
Europe--Ethnic relations.
Germany--Ethnic relations.
Romanies--Europe--Social conditions.
Romanies--Germany--Social conditions.
Romanies--Political activity--Europe.
Romanies--Political activity--Germany.