Redha Mohammad Al-Farouk Omar ibn Al-Khattab : The second caliph / Mohammad Redha; translated by Walid F. Jammal - 1st ed. - Beirut : Dar al-kutub al-'ilmiyyah, 2007. - 288 pages. ; 22 cm. ISBN: 9782745155610 (hbk.) Subjects--Personal Names: 'Umar ibn al-Khattab, Caliph, d. 644 Subjects--Topical Terms: Caliphs -- Biography Subjects--Geographic Terms: Islamic Empire -- History -- 622-661 LC Class. No.: DS38.4.U45