The Earliest Account of ‘Umar Khayyam. Ross, E. Denison. Bulletin of the School of Oriental Studies, 5 (1929) 3, pp. 467–473
The Earliest Account of ‘Umar Khayyam. Ross, E. Denison. Bulletin of the School of Oriental Studies, 5 (1929) 3, pp. 467–473