Columbia subject headings:
Harvard subject headings:
Islamic Empire--History--661-750--Sources.
Islamic Empire--History--750-1258--Sources.
Islamic Empire--History--Early works to 1800.
Palestine--Historical geography--Sources.
Palestine--History--638-1917--Sources.
Princeton subject headings:
Islamic Empire--History--661-750--Sources.
Islamic Empire--History--750-1258--Sources.
Islamic Empire--History--Early works to 1800.
Palestine--Historical geography--Sources.
Palestine--History--638-1917--Sources.