Nasr, Seyyed Vali Reza The Pillars of Islam, Da`a'im Al Islam Al Qadi Al Numan; translated by Asaf A.A. Fyzee; completely revised and annotated by Ismail Kurban Hus. - New Delhi Oxford 2002 - xxxiii, 558p., 23cm - (V.1: Acts of devotion and religious observances) . ISBN: 0-19-565-5354. Dewey Class. No.: 297.822 / N91P