Ṭūsī, N. a. M. i. M., & Ragep, F. J. (1993). Naṣīr al-Dīn al-Ṭūsī's memoir on astronomy. Springer.
Chicago Style (17th ed.) CitationṬūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, and F. J. Ragep. Naṣīr Al-Dīn Al-Ṭūsī's Memoir on Astronomy. New York, NY: Springer, 1993.
MLA (9th ed.) CitationṬūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, and F. J. Ragep. Naṣīr Al-Dīn Al-Ṭūsī's Memoir on Astronomy. Springer, 1993.
Warning: These citations may not always be 100% accurate.