Ṭabarī, 8., & Bosworth, C. E. (1991). Storm and stress along the northern frontiers of the Àbbāsid Caliphate. State University of New York Press.

Ṭabarī, 838?-923, and Clifford Edmund Bosworth. Storm and Stress Along the Northern Frontiers of the Àbbāsid Caliphate. Albany, N.Y.: State University of New York Press, 1991.

Ṭabarī, 838?-923, and Clifford Edmund Bosworth. Storm and Stress Along the Northern Frontiers of the Àbbāsid Caliphate. State University of New York Press, 1991.