GRAHAM, T. (1999). Abū Sa'īd ibn Abī'l-Khayr and the School of Khurāsān. The heritage of sufism ; 1: Classical Persian sufism from its origins to Rumi (700 - 1300), 83-136.
Chicago Style (17th ed.) CitationGRAHAM, TERRY. "Abū Sa'īd Ibn Abī'l-Khayr and the School of Khurāsān." The Heritage of Sufism ; 1: Classical Persian Sufism from Its Origins to Rumi (700 - 1300) 1999: 83-136.
MLA (8th ed.) CitationGRAHAM, TERRY. "Abū Sa'īd Ibn Abī'l-Khayr and the School of Khurāsān." The Heritage of Sufism ; 1: Classical Persian Sufism from Its Origins to Rumi (700 - 1300), 1999, pp. 83-136.
Warning: These citations may not always be 100% accurate.