Columbia subject headings:
Astronomy, Arab--History.
Khuwārizmī, Muḥammad ibn Mūsá, active 813-846.
Muslim scientists--Biography.
Science, Medieval.
Harvard subject headings:
Astronomy, Arab.
Khuwārizmī, Muḥammad ibn Mūsá, active 813-846.
Muslim scientists--Biography.
Science, Medieval.
Princeton subject headings: