Columbia subject headings:
Harvard subject headings:
Imams (Shiites)--Biography.
Nāṣir li-Dīn Allāh Aḥmad ibn Yaḥyá, -934?
Yemen (Republic)--History.
Zaydīs--Yemen--Biography.
Princeton subject headings:
Imams (Shiites)--Biography--Early works to 1800.
Ismailites--Yemen--History.
Nāṣir li-Dīn Allāh Aḥmad ibn Yaḥyá, -934?
Yemen (Republic)--History.
Zaydīs--Yemen--Biography--Early works to 1800.
Zaydīyah--Yemen--History.