Columbia subject headings:
Congress of European Nationalities--History.
Europe--Politics and government--1918-1945.
Minorities--Political activity--Europe--History.
Harvard subject headings:
Congress of European Nationalities--History.
Europe--Politics and government--1918-1945.
Minorities--Europe--Political activity--History.
Princeton subject headings:
Congress of European Nationalities--History.
Europe--Politics and government--1918-1945.
Minorities--Europe--Political activity--History.