Columbia subject headings:
Harvard subject headings:
Levi, Carlo, 1902-1975 Orologio--Congresses.
Levi, Carlo, 1902-1975--Political and social views--Congresses.
Princeton subject headings:
Italy--Politics and government--1943-1947--Congresses.
Levi, Carlo, 1902-1975--Political and social views--Congresses.
Levi, Carlo, 1902-1975. Orologio--Congresses.