APA

HUMPHREYS S. R., .Towards a History of Aleppo and Damascus in the Early Middle Ages, 635-1260 C.E. : Islamic Area Studies Project N°2, 1998.

Chicago

HUMPHREYS Stephen R, .Towards a History of Aleppo and Damascus in the Early Middle Ages, 635-1260 C.E. : Islamic Area Studies Project N°2, 1998.

Harvard

HUMPHREYS S. R., .Towards a History of Aleppo and Damascus in the Early Middle Ages, 635-1260 C.E. : Islamic Area Studies Project N°2, 1998.

MLA

HUMPHREYS Stephen R, .: Islamic Area Studies Project N°2, 1998. .