Columbia subject headings:
Law (Theology)--History of doctrines--Middle Ages, 600-1500.
Law--History.
Law.
Thomas, Aquinas, Saint, 1225?-1274.
Harvard subject headings:
Law (Theology)--History of doctrines--Middle Ages, 600-1500.
Law--History
Thomas, Aquinas, Saint, 1225?-1274--Law.
Princeton subject headings:
Natural law.
Thomas, Aquinas, Saint, 1225?-1274--Law.