Columbia subject headings:
Christianity and other religions.
Church history--Middle Ages, 600-1500.
Islam--History.
Islam--Relations--Christianity.
Judaism--History--Medieval and early modern period, 425-1789.
Judaism--Relations--Christianity.
Religions--Relations.
Harvard subject headings:
Christianity and other religions--Islam--Congresses
Christianity and other religions--Judaism--Congresses
Christianity and other religions.
Church history--Middle Ages, 600-1500
Islam--History
Islam--History--To 1500.
Islam--Relations--Christianity
Islam--Relations--Christianity--Congresses
Judaism--History--Medieval and early modern period, 425-1789
Judaism--Relations--Christianity
Judaism--Relations--Christianity--Congresses
Religions--Relations--History.
Princeton subject headings:
Christianity and other religions--Islam--Congresses.
Christianity and other religions--Judaism--Congresses.
Church history--Middle Ages, 600-1500.
Islam--History--To 1500.
Islam--Relations--Christianity--Congresses.
Judaism--History--Medieval and early modern period, 425-1789.
Judaism--Relations--Christianity--Congresses.