Columbia subject headings:
Spain--Foreign economic relations.
Spain--Foreign relations--1939-1975.
Spain--History--Civil War, 1936-1939--Participation, German.
Harvard subject headings:
Spain--Foreign economic relations.
Spain--Foreign relations--1939-1975.
Spain--History--Civil War, 1936-1939--Participation, German.
Princeton subject headings:
Spain--Foreign economic relations.
Spain--Foreign relations--1939-1975.
Spain--History--Civil War, 1936-1939--Participation, German.