Columbia subject headings:
Church--History of doctrines--Middle Ages, 600-1500.
Doctrine of the church.
Jonas, Bishop of Orléans, approximately 780-843.
Harvard subject headings:
Church--History of doctrines--Middle Ages, 600-1500
Jonas, Bishop of Orléans, approximately 780-843--Contributions in ecclesiology.
Princeton subject headings:
Carolingians.
Church--History of doctrines--Middle Ages, 600-1500.
Jonas, Bishop of Orléans, approximately 780-843--Contributions in ecclesiology.