Columbia subject headings:
Europe--Politics and government--20th century.
Minorities--Political activity--Europe--History--20th century.
Nationalism--Europe--History--20th century.
Regionalism--Europe--History--20th century.
Harvard subject headings:
Europe--Politics and government--20th century.
Minorities--Europe--Political activity--History--20th century.
Minorities--Political activity--Europe--History--20th century.
Nationalism--Europe--History--20th century
Regionalism--Europe--History--20th century.
Princeton subject headings:
Europe--Politics and government--20th century.
Minorities--Europe--Political activity--History--20th century.
Nationalism--Europe--History--20th century.
Regionalism--Europe--History--20th century.