Columbia subject headings:
Harvard subject headings:
Bobbio, Norberto, 1909-2004--Friends and associates.
Intellectuals--Italy--Biography.
Princeton subject headings:
Calamandrei, Piero, 1889-1956.
Intellectuals--Italy.
Italian literature--20th century--History and criticism.
Italy--Intellectual life--20th century.
Philosophy, Italian--20th century.