Columbia subject headings:
Harvard subject headings:
Catholic Church and philosophy--Italy--History--20th century.
Del Noce, Augusto, 1910-1989--Correspondence.
History--Philosophy--History--20th century
Metaphysics--History--20th century
Philosophers, Modern--Italy--Correspondence.
Philosophy, Italian--20th century.
Philosophy, Modern--20th century.
Political science--Italy--Philosophy--History--20th century.
Spirito, Ugo, 1896-1979--Correspondence.
Princeton subject headings:
Catholic Church and philosophy--Italy--History--20th century.
Del Noce, Augusto, 1910-1989--Correspondence.
History--Philosophy--History--20th century.
Metaphysics--History--20th century.
Philosophers, Modern--Italy--Correspondence.
Philosophy, Italian--20th century.
Philosophy, Modern--20th century.
Political science--Italy--Philosophy--History--20th century.
Spirito, Ugo, 1896---Correspondence.