MONA Hassan Longing the lost caliphate: a transregional history / by Mona Hassan - Princeton: Princeton University Press, 2016 - xv, 390 pages : maps, illustrations ; 23 cm. Includes bibliograpical references and index. ISBN: 9780691183374 (pbk) : BND56.90 Subjects--Topical Terms: CALIPHATE-- HISTORYISLAM AND STATE