Columbia subject headings:
Catholic Church--Doctrines--History.
Christian heresies--History--Middle Ages, 600-1500.
Heresy (Canon law)--History.
Harvard subject headings:
Baldwin, Archbishop of Canterbury, approximately 1120-1190.
Baldwin, Archbishop of Canterbury, approximately 1120-1190. Liber de sectis hereticorum.
Baldwin, Archbishop of Canterbury, approximately 1120-1190. Orthodoxe fidei dogmata.
Catholic Church--Doctrines--Early works to 1800.
Christian heresies--Catholic authors--Early works to 1800.
Christian heresies--Early works to 1800.
Christian heresies--History--Middle Ages, 600-1500
Heresy (Canon law)--History.
Theology, Doctrinal--Early works to 1800.
Princeton subject headings: