WITNESS

al-Tadhkirah fī ʿilm al-hayʾah _Istanbul_Millet Library (Istanbul)_Feyzullah_1331

References

Ragep, F. Jamil. 1993. Nasīr Al‐Dīn Al‐Ṭūsī's Memoir On Astronomy (Al‐Tadhkira Fī ʿIlm Al‐Hayʾa). 2 vol.. New York: Springer‐Verlag.

1:80, no. 24.