Columbia subject headings:
Harvard subject headings:
Spain--Foreign relations--1939-1975.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Secret service--Japan.
World War, 1939-1945--Spain.
Princeton subject headings:
Spain--Foreign relation--1939-1975.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Secret service--Japan.
World War, 1939-1945--Spain.