Columbia subject headings:
Salafīyah--Doctrines.
Wahhābīyah--Controversial literature.
Harvard subject headings:
Islam--Apologetic works
Salafīyah--Doctrines.
Wahhābīyah--Doctrines.
Princeton subject headings:
Islam--Apologetic works.
Salafīyah--Doctrines.
Wahhābīyah--Doctrines.