Columbia subject headings:
Carlists--History--20th century.
Spain--History, Military.
Spain--History--Civil War, 1936-1939.
Spain. Ejército--History--20th century.
Harvard subject headings:
Spain--History, Military.
Spain--History--Civil War, 1936-1939--Regimental histories.
Spain. Ejército. Tercio de Requetés--History.
Princeton subject headings: