Numani, Shibli. Omar the great : the second caliph of Islam / Shibli Numani ; translated by Zafar Ali Khan. - 2nd rev. ed. - Lahore : SH. Muhammad Ashraf, c 1966. - Vols. ; 22 cm. Includes index. V. 1-- ; 337 337 Subjects--Topical Terms: Islam--history and criticism. Dewey Class. No.: 290.92 / S61o