Columbia subject headings:
Aristotle. Metaphysics.
Hegel, Georg Wilhelm Friedrich, 1770-1831.
Kant, Immanuel, 1724-1804.
Metaphysics.
Harvard subject headings:
Aristotle. Metaphysics
Hegel, Georg Wilhelm Friedrich, 1770-1831--Metaphysics.
Kant, Immanuel, 1724-1804--Metaphysics.
Princeton subject headings:
Aristotle. Metaphysics.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Metaphysics.
Kant, Immanuel, 1724-1804--Metaphysics.