Columbia subject headings:
Czechoslovakia--History--Intervention, 1968.
Harvard subject headings:
Czechoslovakia--History--Intervention, 1968.
Czechoslovakia--Politics and government--1945-1968.
Dubček, Alexander, 1921---Interviews.
Heads of state--Czechoslovakia--Interviews.
Princeton subject headings:
Czechoslovakia--History--Intervention, 1968.
Czechoslovakia--Politics and government--1945-1992.
Dubček, Alexander, 1921-1992--Interviews.
Heads of state--Czechoslovakia--Interviews.