Columbia subject headings:
Kant, Immanuel, 1724-1804.
Popper, Karl R. (Karl Raimund), 1902-1994.
Harvard subject headings:
Kant, Immanuel, 1724-1804
Popper, Karl R. (Karl Raimund), 1902-1994.
Princeton subject headings:
Kant, Immanuel, 1724-1804--Criticism and interpretation.
Knowledge, Theory of.
Popper, Karl Raimund, Sir, 1902---Criticism and interpretation.
Rationalism.