Columbia subject headings:
Albigenses--History--Sources.
Christian heretics--Italy--Sources.
Patarines--History--Sources.
Harvard subject headings:
Albigenses--History
Christian heresies--Italy--Rimini--History.
Christian heresies--Italy--Verona--History.
Rimini (Italy)--Church history.
Verona (Italy)--Church history.
Princeton subject headings: