Columbia subject headings:
Christianity and other religions--Islam.
Ibn Ḥazm, ʻAlī ibn Aḥmad, 994-1064.
Islam--Relations--Christianity.
Islam--Relations--Judaism.
Islam--Spain--Andalusia--History.
Judaism--Relations--Islam.
Khazrajī, Aḥmad ibn ʻAbd al-Ṣamad, 1125 or 1126-1186 or 1187.
Harvard subject headings:
Princeton subject headings:
Christianity and other religions.
Islam--Relations--Christianity.
Muslims--Spain--Intellectual life.
Spain--History--711-1516.