Columbia subject headings:
Harvard subject headings:
Politics and war--Spain--History--20th century.
Spain--History, Military--20th century.
Spain--History--Civil War, 1936-1939--Battles.
Spain--History--Civil War, 1936-1939--Campaigns.
Princeton subject headings:
Spain--History--Civil War, 1936-1939--Battles.
Spain--History--Civil War, 1936-1939--Campaigns.