Columbia subject headings:
Aristotle.
Ptolemaeus Chennus.
Rāzī, Abū Bakr Muḥammad ibn Zakarīyā, 865?-925?
Ḥunayn ibn Isḥāq al-ʻIbādī, 809?-873.
Harvard subject headings:
Academic theses
Aristotle
Ḥunayn ibn Isḥāq al-ʻIbādī, 809?-873
Ptolemaeus Chennus.
Rāzī, Abū Bakr Muḥammad ibn Zakarīyā, 865?-925?
Syriac literature
Princeton subject headings: