Columbia subject headings:
Spain--Foreign relations--1939-1975.
Spain--Politics and government--1939-1975.
World War, 1939-1945--Spain.
Harvard subject headings:
Spain--Foreign relations--1939-1975
Spain--Foreign relations--1939.
Spain--Politics and government--1939-1945
Spain--Politics and government--1939-1975
World War, 1939-1945--Spain
Princeton subject headings:
Spain--Foreign relations--1939-1975.
Spain--Politics and government--1939-1945.
World War, 1939-1945--Spain.