Columbia subject headings:
Islam--Asia, Central--History.
Islam--Caucasus--History.
Sufism--Asia, Central--History.
Sufism--Caucasus--History.
Harvard subject headings:
Islam--Asia, Central--History
Islam--Caucasus--History.
Sufism--Asia, Central--History.
Sufism--Caucasus--History.
Princeton subject headings:
Islam--Asia, Central--History.
Islam--Caucasus--History.
Sufism--Asia, Central--History.
Sufism--Caucasus--History.