Columbia subject headings:
Harvard subject headings:
Popper, Karl R. (Karl Raimund), 1902-1994.
Princeton subject headings:
History--Philosophy.
Intellectuals--Italy--Interviews.
Interviews.
Philosophy--Italy--History--20th century.
Political science--Italy--History--20th century.
Popper, Karl R. (Karl Raimund), 1902-1994.