Columbia subject headings:
Islam--Somalia--20th century.
Muslim scholars--Somalia--Biography.
Sufis--Somalia--Biography.
Sufism--Somalia--History.
Ḥallūlī, Ḥasan, 1913-1997.
Harvard subject headings:
Islam--Somalia--20th century.
Muslim scholars--Somalia--Biography.
Sufis--Somalia--Biography.
Sufism--Somalia--History.
Ḥallūlī, Ḥasan 1913-1997.
Princeton subject headings:
Ḥallūlī, Ḥasan 1913-1997.
Islam--Somalia--20th century.
Muslim scholars--Somalia--Biography.
Sufis--Somalia--Biography.
Sufism--Somalia--History.