Columbia subject headings:
Yemen (Republic)--History.
Harvard subject headings:
Yemen (Republic)--History.
Princeton subject headings:
Imams (Shiites)--Yemen--Biography.
Wazīr, Muḥammad ibn ʻAbd Allāh, 1802-1889 or 1890.
Yemen (Republic)--History.
Yemen (Republic)--Kings and rulers.
Zaydīs--Yemen--Biography.