Columbia subject headings:
Albigenses--Italy--Bagnolo San Vito--History.
Bagnolo San Vito (Italy)--Church history.
Christian heresies--Italy--Bagnolo San Vito--History--Middle Ages, 600-1500.
Harvard subject headings:
Albigenses--Italy--Bagnolo San Vito--History.
Bagnolo San Vito (Italy)--Church history.
Christian heresies--Italy--Bagnolo San Vito--History--Middle Ages, 600-1500.
Princeton subject headings: