Columbia subject headings:
Harvard subject headings:
Cultural pluralism--Europe, Eastern--History--19th century.
Cultural pluralism--Europe, Eastern--History--20th century.
Ethnic conflict--Europe, Eastern--History--19th century.
Ethnic conflict--Europe, Eastern--History--20th century.
Europe, Eastern--Ethnic relations--History.
Princeton subject headings:
Cultural pluralism--Europe.
Europe--Ethnic identity.
Europe--Ethnic relations.