Columbia subject headings:
Anselm, Saint, Archbishop of Canterbury, 1033-1109.
Proof of God's existence.
Harvard subject headings:
Anselm, Saint, Archbishop of Canterbury, 1033-1109
Anselm, Saint, Archbishop of Canterbury, 1033-1109--Contributions in proof of God's existence.
God--Proof
Princeton subject headings:
Anselm, Saint, Archbishop of Canterbury, 1033-1109--Contribution in proof of God's existence.