Columbia subject headings:
Spain--History--1939-1975--Congresses.
World War, 1939-1945--Congresses.
Harvard subject headings:
Spain--History--1939-1975--Congresses.
Spain--Politics and government--1939-1975--Congresses.
World War, 1939-1945--Europe--Congresses.
World War, 1939-1945--Spain--Congresses.
Princeton subject headings: