Columbia subject headings:
Spain--History--Civil War, 1936-1939--Campaigns.
Spain--History--Civil War, 1936-1939--Participation, Foreign.
Spain--History--Civil War, 1936-1939--Regimental histories.
Spain--History--Civil War, 1936-1939.
Harvard subject headings:
Princeton subject headings:
Spain--History--Civil War, 1936-1939--Participation, Foreign.
Spain--History--Civil War, 1936-1939--Personal narratives, German.