Columbia subject headings:
Harvard subject headings:
Abrahamic religions--History.
Christianity and other religions--Islam--Congresses
Christianity and other religions--Judaism--Congresses
Islam--Relations--Christianity--Congresses
Islam--Relations--Judaism--Congresses.
Judaism--Relations--Christianity--Congresses
Judaism--Relations--Islam--Congresses.
Reformation--Germany--Congresses.
Princeton subject headings:
Christianity and other religions--Islam.
Christianity and other religions--Judaism.
Islam--History.
Judaism--History.
Reformation.