Columbia subject headings:
Harvard subject headings:
Faith and reason.
God (Christianity)--History of doctrines--Middle Ages, 600-1500
Philosophy, Medieval.
Theology--Early works to 1800
Trinity--History of doctrines--Middle Ages, 600-1500.
Princeton subject headings:
Faith and reason.
God (Christianity)--History of doctrines--Middle Ages, 600-1500.
Philosophy, Medieval.
Theology--History--Middle Ages, 600-1500.
Trinity--History of doctrines--Middle Ages, 600-1500.