Columbia subject headings:
Aristotle.
Ontology.
Theology.
Thomas, Aquinas, Saint, 1225?-1274.
Harvard subject headings:
Aristotle--Congresses.
Metaphysics--Congresses
Thomas, Aquinas, Saint, 1225?-1274--Congresses.
Princeton subject headings:
Aristotle.
Ontology.
Theology.
Thomas, Aquinas, Saint, 1225?-1274.