Columbia subject headings:
Harvard subject headings:
God (Islam)--Worship and love--Early works to 1800.
Islam--Customs and practices--Early works to 1800.
Religious life--Islam--Early works to 1800.
Sufism--Early works to 1800
Princeton subject headings:
God (Islam)--Worship and love--Early works to 1800.
Islam--Customs and practices--Early works to 1800.
Religious life--Islam--Early works to 1800.
Sufism--Early works to 1800.