Columbia subject headings:
Dialectic.
Reason.
Theology, Doctrinal--France--History--Medieval period, 987-1515.
Harvard subject headings:
Dialectic.
Reason.
Theology, Doctrinal--France--History--Medieval, 987-1515.
Princeton subject headings:
Philosophy, Medieval.
Theologians.
Theology--History--Middle Ages, 600-1500.