Columbia subject headings:
Bishops (Canon law)--History--Sources.
Carolingians--History--Sources.
France--Church history--To 987--Sources.
Pseudo-Isidorian decretals.
Harvard subject headings:
Bishops (Canon law)--History--Sources.
Carolingians--History--Sources.
France--Church history--To 987--Sources.
Pseudo-Isidorian decretals.
Princeton subject headings:
Bishops (Canon law)--History--Sources.
Carolingians--History--Sources.
France--Church history--To 987--Sources.
Pseudo-Isidorian decretals.