Columbia subject headings:
Catholic Church--Relations--Islam--History--Congresses.
Christians--Iberian Peninsula--History--Congresses.
Islam--Relations--Catholic Church--History--Congresses.
Muslims--Iberian Peninsula--History--Congresses.
Harvard subject headings:
Princeton subject headings:
Catholic Church--Relations--Islam--History--Congresses.
Christians--Iberian Peninsula--History--Congresses.
Islam--Relations--Catholic Church--History--Congresses.
Muslims--Iberian Peninsula--History--Congresses.