Columbia subject headings:
Harvard subject headings:
Islam--Customs and practices--Early works to 1800.
Islam--Doctrines--Early works to 1800.
Shīʻah--Early works to 1800
Princeton subject headings:
Shīʻah--Customs and practices--Early works to 1800.
Shīʻah--Doctrines--Early works to 1800.