Columbia subject headings:
Harvard subject headings:
Brescia, Giuseppe--Views on epistemology.
Brescia, Giuseppe.
Croce, Benedetto, 1866-1952--Views on epistemology.
Knowledge, Theory of
Popper, Karl R. (Karl Raimund), 1902-1994--Views on epistemology.
Princeton subject headings:
History--Philosophy.
Knowledge, Theory of.