Columbia subject headings:
Political prisoners--Spain--History.
Spain--History--1939-1975.
Spain--History--Civil War, 1936-1939.
Harvard subject headings:
Francoism.
Spain--History--1939-1975.
Spain--History--Civil War, 1936-1939.
Princeton subject headings:
Francoism.
Spain--History--1939-1975.
Spain--History--Civil War, 1936-1939.