Columbia subject headings:
Aleppo (Syria)--History.
Hamdanids.
Syria--History--750-1260.
Harvard subject headings:
Aleppo (Syria)--History.
Hamdanids.
Syria--History--750-1260.
Princeton subject headings:
Aleppo (Syria)--History.
Hamdanids.
Syria--History--750-1260.