Columbia subject headings:
Harvard subject headings:
Aeronautics, Military--Italy--History
Spain--History--Civil War, 1936-1939--Aerial operations.
Spain--History--Civil War, 1936-1939--Participation, Foreign.
Spain. Ejército Nacional. Aviación Legionaria.
Princeton subject headings:
Spain--History--Civil War, 1936-1939--Aerial operations, Italian.
Spain--History--Civil War, 1936-1939--Participation, Foreign.
Spain--History--Civil War, 1936-1939--Participation, Italian.