Columbia subject headings:
Catholic Church--Relations--Judaism--History--Congresses.
Jews--Italy--History--Congresses.
Jews--Italy--Legal status, laws, etc. (Canon law)--Congresses.
Judaism--Relations--Catholic Church--History--Congresses.
Harvard subject headings:
Catholic Church--Relations--Judaism--History--Congresses.
Jews (Canon law)--Italy--Congresses.
Jews--Italy--History--Congresses.
Judaism--Relations--Catholic Church--History--Congresses.
Princeton subject headings:
Catholic Church--Relations--Judaism--History--Congresses.
Jews--Italy--History--Congresses.
Jews--Italy--Legal status, laws, etc. (Canon law)--Congresses.
Judaism--Relations--Catholic Church--History--Congresses.