Columbia subject headings:
Boethius, -524. De Trinitate.
Pluralism--Early works to 1800.
Trinity--Early works to 1800.
Harvard subject headings:
Boethius, -524. De Trinitate.
Classification of sciences.
Theology, Doctrinal--Early works to 1800.
Thomas, Aquinas, Saint, 1225?-1274. Expositio super librum Boethii De Trinitate
Trinity--Early works to 1800.
Princeton subject headings:
Boethius, -524. De Trinitate.
Faith and reason--Early works to 1800.
Pluralism--Early works to 1800.
Trinity--Early works to 1800.