RT Article T1 How to measure economic growth in the Middle East?: a framework of inquiry for the middle Islamic period JF Material evidence and narrative sources SP 30 OP 57 A1 Heidemann, Stefan 1961- LA English PB Brill YR 2015 UL https://www.ixtheo.de/Record/815423624 SN 9789004279667 SN 9789004271593