MLA

Rāzī, Abū Bakr Muḥammad ibn Zakarīyā, 865?-925?. Tractatus nonus ad regem Almansorem, de curatione morborum particularium .... 1534.. https://collections.library.yale.edu/catalog/10905717.

APA, 6th edition

Rāzī, Abū Bakr Muḥammad ibn Zakarīyā, 865?-925?. (1534.)[Tractatus nonus ad regem Almansorem, de curatione morborum particularium ...]. https://collections.library.yale.edu/catalog/10905717.