Columbia subject headings:
Church history--Middle Ages, 600-1500--Historiography.
Eastern churches--Historiography.
Harvard subject headings:
Church history--Middle Ages, 600-1500--Historiography
Eastern churches--Historiography.
Eastern churches--History--Historiography.
Princeton subject headings:
Church history--Middle Ages, 600-1500--Historiography.
Eastern churches--History--Historiography.