Columbia subject headings:
Erzurum (Turkey)--Biography.
Erzurûmı̂, Osman Bedrüddı̂n.
Sufis--Turkey.
Sufism--Turkey.
Harvard subject headings:
Erzurum (Turkey)--Biography.
Erzurûmı̂, Osman Bedrüddı̂n.
Sufis--Turkey.
Sufism--Turkey
Princeton subject headings:
Erzurum (Turkey)--Biography.
Erzurûmı̂, Osman Bedrüddı̂n.
Sufis--Turkey.
Sufism--Turkey.