The mystics of Islam / Reynold A. Nicholson. Nicholson, Reynold Alleyne, 1868-1945. Sufism. BP189 .N49 1975 297.6 NIM Reprint of the 1963 ed. published by Routledge & Kegan Paul, London, of a work first published in 1914. Includes index. Bibliography: p. 169-171. London : Arkana, 1989. 1989. 1989 Text 178 p. ; eng