Columbia subject headings:
Europe, Eastern--History--20th century.
Europe, Eastern--Politics and government--20th century.
Hungary--History--Revolution, 1918-1919.
Hungary--Politics and government--1918-1945.
Harvard subject headings:
Europe, Eastern--History.
Hungary--History--Revolution, 1918-1919
Revolutions--Europe, Eastern.
Princeton subject headings:
Europe, Eastern--History.
Hungary--History--Revolution, 1918-1919.
Revolutions--Europe, Eastern.