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APA Citation
Unknown (2009). Degrees of excellence : a Fatimid treatise on leadership in Islam : a new Arabic edition and English translation of Ahmad b. Ibrāhīm al-Naysābūrī's Kitāb ithbāt al-imāma. Place of publication not identified : I.B. Tauris. http://access.bl.uk/ark:/81055/vdc_100079541817.0x000001