Columbia subject headings:
Communism--Czechoslovakia.
Communism--Poland.
Communism--Romania.
Czechoslovakia--Politics and government--1945-1992.
Poland--Politics and government--1945-1980.
Romania--Politics and government--1945-
Harvard subject headings:
Communism--Czechoslovakia
Communism--Poland
Communism--Romania
Czechoslovakia--Politics and government--1945-
Legislative hearings.
Poland--Politics and government--1945-1980
Romania--Politics and government--1944-1989.
Princeton subject headings: