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HARVARD Citation
Unknown (2009) Degrees of excellence : a Fatimid treatise on leadership in Islam : a new Arabic edition and English translation of A{u1E25}mad b. Ibrāhīm al-Naysābūrī's Kitāb ithbāt al-imāma. [Online]. Place of publication not identified : I.B.Tauris. Available from: http://access.bl.uk/ark:/81055/vdc_100040409607.0x000001