Columbia subject headings:
Christianity--Philosophy.
Przywara, Erich, 1889-1972.
Religion--Philosophy.
Harvard subject headings:
Christianity--Philosophy
Przywara, Erich, 1889-1972.
Princeton subject headings:
Apologetics--History--20th century.
Apologetics.
Metaphysics.
Przywara, Erich, 1889-1972.
Religion--Philosophy.