WITNESS

Risālah fī al-fuṣūl fī al-ṭawāliʿ wa-aḥkām al-nujūm_Cairo_Dār al-kutub_Ṭalʿat mīqāt_139

References

King, David. 1986. A Survey Of The Scientific Manuscripts In The Egyptian National Library. Winona Lake, IN: Eisenbrauns; The American Research Center in Egypt.

P. 33 (B15), 5.2.5.