Columbia subject headings:
Harvard subject headings:
Czechoslovakia--Economic policy--1965-1989.
Czechoslovakia--Foreign relations--1945-1992.
Czechoslovakia--History--Intervention, 1968.
Czechoslovakia--Politics and government--1968-1989.
Czechoslovakia--Social conditions--1945-1992.
Dubček, Alexander, 1921-1992.
Princeton subject headings:
Czechoslovakia--Economic policy--1965-1989.
Czechoslovakia--Foreign relations--1945-1992.
Czechoslovakia--History--Intervention, 1968.
Czechoslovakia--Politics and government--1968-1989.
Czechoslovakia--Social conditions--1945-1992.