Columbia subject headings:
Italians--Spain--History--20th century.
Italy--Foreign relations--Spain.
Spain--Foreign relations--Italy.
Spain--History--Civil War, 1936-1939--Participation, Italian.
Harvard subject headings:
Italians--Spain--History--20th century.
Italy--Foreign relations--Spain.
Spain--Foreign relations--Italy.
Spain--History--Civil War, 1936-1939--Participation, Italian.
Princeton subject headings:
Italians--Spain--History--20th century.
Italy--Foreign relations--Spain.
Spain--Foreign relations--Italy.
Spain--History--Civil War, 1936-1939--Participation, Italian.