Columbia subject headings:
Islam--Doctrines.
Islam--Iran.
Islamic philosophy--Iran.
Shīʻah--Doctrines.
Shīʻah--Iran.
Harvard subject headings:
Islam--Doctrines
Islam--Iran
Islamic philosophy--Iran.
Shīʻah--Doctrines
Shīʻah--Iran.
Princeton subject headings:
Islam--Doctrines.
Islam--Iran.
Islamic philosophy--Iran.
Shīʻah--Doctrines.
Shīʻah--Iran.