Maḥmūd, ʻAbd al-Qādir. al-Fikr al-Ṣūfī fī al-Sudān. - 1968-69 [i. e. 1968] - 229 p. geneal. tables. 24 cm. Romanized. LCCN: ne 68003913 Subjects--Topical Terms: Sufism--Sudan. LC Class. No.: BP189 / .M282