Columbia subject headings:
Czechoslovakia--Economic conditions--1945-1992.
Czechoslovakia--History--Intervention, 1968.
Czechoslovakia--Politics and government--1968-1989.
Poland--Economic conditions--1981-1990.
Poland--History--1980-1989.
Poland--Politics and government--1980-1989.
Harvard subject headings:
Czechoslovakia--Economic conditions--1945-
Czechoslovakia--Economic conditions--1945-1992.
Czechoslovakia--History--1945-1992.
Czechoslovakia--History--Intervention, 1968.
Czechoslovakia--Politics and government--1945-
Czechoslovakia--Politics and government--1968-
Poland--Economic conditions--1945-
Poland--Economic conditions--1945-1981
Poland--Economic conditions--1981-1990
Poland--History--1980-
Poland--Politics and government--1980-1989
Princeton subject headings:
Czechoslovakia--Economic conditions--1945-1992.
Czechoslovakia--History--1945-1992.
Czechoslovakia--Politics and government--1945-1992.
Poland--Economic conditions--1945-1981.
Poland--History--1980-.
Poland--Politics and government--1980-1989.