Trimingham, J. Spencer 1904-, The Sufi orders in Islam / [print] J. Spencer Trimingham ; with a new foreword by John O. Voll. - New York : Oxford University Press, (c)1998. - xx, 333 pages ; 21 cm. LCCN: 97046478 Subjects--Topical Terms: Sufism. LC Class. No.: BP189 BP189.T831.S845 1998