1. Delhi Arabic 1909/a Reference (shelfmark): Delhi Arabic 1909/a Title: Taḥrīr [uṣūl al-handasah wa-al-ḥisāb li-] Uqlīdis Scope & Content: Author: Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad, 1201-1274 VIAF ID: 12392936 Subject: Mathematics, Arab--Early works to 1800 Collection Area: Oriental Manuscripts Languages: Arabic Date Range: 1214 Extent: 1 item