Columbia subject headings:
Spain--History--Civil War, 1936-1939.
Tangier (Morocco)--History--20th century.
Harvard subject headings:
Morocco (Spanish zone)--History--20th century.
Spain--History--Civil War, 1936-1939
Tangier (Morocco)--History--20th century.
Princeton subject headings:
Morocco (Spanish zone)--History--20th century.
Spain--History--Civil War, 1936-1939.
Tangier (Morocco)--History--20th century.