1. Delhi Arabic 507/b Reference (shelfmark): Delhi Arabic 507/b Title: Risālah fī al-ḥisāb wa-al-jabr Scope & Content: Author: Bihishtī, Muḥammad ibn Aḥmad Subject: Mathematics, Arab--Early works to 1800 Collection Area: Oriental Manuscripts Languages: Arabic Date Range: 16th century Extent: 1 item