Columbia subject headings:
Arab countries--Relations--Spain--Congresses.
Arabs--Spain--Congresses.
Spain--Relations--Arab countries--Congresses.
Harvard subject headings:
Africa, North--History--Congresses.
Islamic Empire--Congresses.
Islamic civilization--Congresses
Middle East--History--1517---Congresses.
Muslims--Spain--Congresses.
Spain--Civilization--711-1516--Congresses.
Princeton subject headings:
Africa, North--History--Congresses.
Islamic Empire--Congresses.
Islamic civilization--Congresses.
Middle East--History--1517---Congresses.
Muslims--Spain--Congresses.
Spain--Civilization, Islamic--Congresses.