Columbia subject headings:
Assassination--Poland--History.
Communism--Poland.
Criminal law--Poland.
Dissenters--Poland--Biography.
Poland--Foreign relations--Soviet Union.
Poland--Politics and government--1945-1980.
Political crimes and offenses--Poland--History.
Soviet Union--Foreign relations--Poland.
Harvard subject headings:
Poland--History--1945-1980
War crime trials--Poland
Princeton subject headings:
Anti-communist movements--Poland.
Communism--Poland.
Poland--History--1945-1980.
Poland--Politics and government--1945-1980.