Columbia subject headings:
Europe, Central--Ethnic relations.
Europe, Central--Politics and government.
Europe, Eastern--Ethnic relations.
Europe, Eastern--Politics and government.
Harvard subject headings:
Europe, Central--Ethnic relations.
Europe, Central--Politics and government.
Europe, Eastern--Ethnic relations.
Europe, Eastern--Politics and government.
Princeton subject headings:
Europe, Central--Ethnic relations.
Europe, Central--Politics and government.
Europe, Eastern--Ethnic relations.
Europe, Eastern--Politics and government.