Columbia subject headings:
Christian heresies--Historiography.
Christian heresies--History of doctrines--13th century.
Christian heresies--History--Middle Ages, 600-1500.
Christian literature, Early.
Harvard subject headings:
Christian heresies--Historiography.
Christian heresies--History of doctrines--13th century.
Christian heresies--History--Middle Ages, 600-1500
Christian literature, Early.
Princeton subject headings:
Christian heresies--History--Middle Ages, 600-1500.
Church history--13th century.