Columbia subject headings:
Arab countries--History--Early works to 1800.
Geography, Arab--Early works to 1800.
Islamic Empire--History.
Harvard subject headings:
Arab countries--History--Early works to 1800.
Geography, Arab--Early works to 1800.
Princeton subject headings:
Arab countries--History--Early works to 1800.
Geography, Arab--Early works to 1800.
Islamic Empire--History.