Columbia subject headings:
Spain--Economic conditions--1918-1975--Congresses.
Spain--History--1939-1975--Congresses.
Spain--Social conditions--20th century--Congresses.
Harvard subject headings:
Francoism--Congresses.
Spain--History--Civil War, 1936-1939--Congresses.
Spain--Politics and government--1939-1975--Congresses.
Spain--Social conditions--1939-1975--Congresses.
Princeton subject headings:
Francoism--Congresses.
Spain--Politics and government--1939-1975--Congresses.
Spain--Social conditions--1939-1975--Congresses.