Columbia subject headings:
Yemen (Republic)--Politics and government--20th century.
Ṣāliḥ, ʻAlī ʻAbd Allāh.
Harvard subject headings:
Yemen (Republic)--History--20th century.
Yemen (Republic)--Kings and rulers.
Yemen (Republic)--Politics and government--20th century.
Ṣāliḥ, ʻAlī ʻAbd Allāh.
Princeton subject headings: