Columbia subject headings:
Thomas, Aquinas, Saint, 1225?-1274.
Thomas, Aquinas, Saint, 1225?-1274. Expositio super Boetium de Trinitate.
Harvard subject headings:
Thomas, Aquinas, Saint, 1225?-1274
Thomas, Aquinas, Saint, 1225?-1274. Expositio super Boetium De Trinitate.
Princeton subject headings: