Nicholson , R. A. (1963). The Mystics of Islam. Routledge and Kegan Paul Ltd.
Lua i Stíl Chicago (17ú heag.)Nicholson , Reynold A. The Mystics of Islam. Londo: Routledge and Kegan Paul Ltd, 1963.
Lua MLA (9ú heag.)Nicholson , Reynold A. The Mystics of Islam. Routledge and Kegan Paul Ltd, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.