Columbia subject headings:
Communism--Czechoslovakia.
Communism--Lithuania.
Communism--Poland.
Czechoslovakia--Politics and government--1945-1992.
Lithuania--Politics and government--1945-1991.
Poland--Politics and government--1945-1980.
Harvard subject headings:
Communism--Czechoslovakia
Communism--Lithuania
Communism--Poland
Czechoslovakia--Politics and government--1945-
Legislative hearings.
Lithuania--Politics and government--1945-
Poland--Politics and government--1945-1980
Princeton subject headings: