Columbia subject headings:
Arab countries--Foreign relations--Catholic Church--Congresses.
Arab-Israeli conflict--Congresses.
Catholic Church--Foreign relations--Arab countries--Congresses.
Catholic Church--Foreign relations--Israel--Congresses.
Catholic Church--Relations--Islam--Congresses.
Christians--Middle East--Congresses.
Islam--Relations--Christianity--Congresses.
Israel--Foreign relations--Catholic Church--Congresses.
Harvard subject headings:
Arab countries--Foreign relations--Catholic Church--Congresses.
Arab-Israeli conflict--Congresses
Catholic Church--Foreign relations--Arab countries--Congresses.
Catholic Church--Foreign relations--Israel--Congresses.
Catholic Church--Relations--Islam--Congresses.
Christians--Middle East--Congresses.
Islam--Relations--Christianity--Congresses
Israel--Foreign relations--Catholic Church--Congresses.
Princeton subject headings:
Arab countries--Foreign relations--Catholic Church--Congresses.
Arab-Israeli conflict--Congresses.
Catholic Church--Foreign relations--Arab countries--Congresses.
Catholic Church--Foreign relations--Israel--Congresses.
Catholic Church--Relations--Islam--Congresses.
Christians--Middle East--Congresses.
Islam--Relations--Christianity--Congresses.
Israel--Foreign relations--Catholic Church--Congresses.