An ordinance, when passed by the council, shall be signed by the presiding officer and attested by the city clerk. It shall be immediately filed and thereafter preserved in the office of the city clerk and, except as otherwise provided in the charter of the city, shall be subject to the referendum provided in Article XVII of the charter of the city.

(Code 1964, § 2.340)

     Charter reference(s)--Similar provisions, § 15D.