Columbia subject headings:
Christianity and other religions--Islam.
Islam--21st century.
Islam--Essence, genius, nature.
Islam--History.
Islam--Relations--Christianity.
Harvard subject headings:
Christianity and other religions--Islam
Islam--21st century
Islam--History
Islam--Relations--Christianity
Princeton subject headings:
Christianity and other religions--Islam.
Islam--21st century.
Islam--Essence, genius, nature.
Islam--History.
Islam--Relations--Christianity.