Columbia subject headings:
Islam--Customs and practices--Early works to 1800.
Prayers and devotions--Early works to 1800.
Harvard subject headings:
Islam--Customs and practices--Early works to 1800
Islam--Prayers and devotions--Early works to 1800.
Princeton subject headings:
Islam--Customs and practices--Early works to 1800.
Prayers and devotions--Early works to 1800.--slam.