Columbia subject headings:
Harvard subject headings:
Aleppo (Syria)--Kings and rulers.
Hamdanids--Early works to 1800.
Iraq--History--634-1534.
Mosul (Iraq)--Kings and rulers.
Syria--History--750-1260.
Princeton subject headings:
Aleppo (Syria)--Kings and rulers.
Hamdanids--Early works to 1800.
Iraq--History--634-1534.
Mosul (Iraq)--Kings and rulers.
Syria--History--750-1260.