Columbia subject headings:
Imams (Shiites)--Biography.
ʻAlī al-Hādī, 828?-868.
Harvard subject headings:
Imams (Shiites)--Biography.
ʻAlī al-Hādī, 828?-868.
Princeton subject headings:
Imams (Shiites)--Biography.
ʻAlī al-Hādī, 828?-868.