Ahmad, Fazl Abu Bakr : the first caliph of Islam / Fazl Ahmad - Lahore, Pakistan, M. Ashraf 1999. - 40 p. 15cm. LCCN: ltf91056484 Subjects--Topical Terms: Abū Bakr, -- Caliph, -- -634. Islamic Empire -- History -- 622-661. Caliphs -- Biography. Dewey Class. No.: 297.6 / AHA 1999