Biruni, Muḥammad ibn Aḥmad Abū al-Rayḥān al Al-Qanunu'l-Mas'udi (Canon Masudicus): An encyclopaedia of astronomical sciences - Hyderabad: The Dāʼiratuʼl-maʻārif-il-oṣmānia, Subjects--Topical Terms: Astronomy Universal Decimal Class. No.: R 52