Columbia subject headings:
Harvard subject headings:
Culture--Philosophy
Grabmann, Martin, 1875-1949--Metaphysics.
Maritain, Jacques, 1882-1973--Metaphysics.
Metaphysics--History--20th century
Neo-Scholasticism
Princeton subject headings:
Grabmann, Martin, 1875-1949.
Maritain, Jacques, 1882-1973.
Philosophy, Polish--20th century.
Scholasticism.