Columbia subject headings:
Constitutional law--Europe, Eastern.
Europe, Eastern--Politics and government.
Socialism.
Harvard subject headings:
Constitutional history--Europe, Eastern.
Constitutional history--Hungary
Constitutional history--Soviet Union
Europe, Eastern--Politics and government--1945-1989.
Hungary--Politics and government--1945-1989
Soviet Union--Politics and government--1953-1985.
Princeton subject headings:
Constitutional history--Europe, Eastern.
Constitutional history--Hungary.
Constitutional history--Soviet Union.
Europe, Eastern--Politics and government.
Hungary--Politics and government--1945-.
Soviet Union--Politics and government--1953-.