Columbia subject headings:
Italy--Politics and government--20th century.
Valiani, Leo, 1909-1999--Correspondence.
Venturi, Franco--Correspondence.
Harvard subject headings:
Italy--Politics and government--1945-1976.
Italy--Politics and government--1976-1994.
Italy--Politics and government--20th century.
Valiani, Leo, 1909---Correspondence.
Valiani, Leo, 1909-1999--Correspondence.
Venturi, Franco--Correspondence.
Princeton subject headings:
Italy--Politics and government--20th century.
Valiani, Leo, 1909---Correspondence.
Venturi, Franco--Correspondence.