Columbia subject headings:
Khorazm oblasti (Uzbekistan)--Civilization.
Khorazm oblasti (Uzbekistan)--History.
Khuwārizmī, Muḥammad ibn Mūsá, active 813-846.
Harvard subject headings:
Khorazm oblasti (Uzbekistan)--Civilization.
Khorazm oblasti (Uzbekistan)--History.
Khuwārizmī, Muḥammad ibn Mūsá, active 813-846.
Princeton subject headings: