Columbia subject headings:
Apologetics--History--Middle Ages, 600-1500.
Christianity and other religions--Islam--Early works to 1800.
Islam--Controversial literature--Early works to 1800.
Qurʼan--Criticism, interpretation, etc.--Early works to 1800.
Harvard subject headings:
Christianity and other religions--Islam--Early works to 1800.
Islam--Controversial literature--Early works to 1800
Qurʼan--Criticism, interpretation, etc.--Early works to 1800.
Princeton subject headings:
Christianity and other religions--Islam.
Islam--Relations--Christianity.
Qurʼan.