The Standard Specifications for Public Works Construction, 1976 edition, together with all supplements and amendments thereto, as from time to time adopted, all as promulgated jointly by the Southern California Chapter of the American Public Works Association, and the Southern California District of the Associated General Contractors of California Joint Cooperative Committee, is adopted by reference. Three copies of such code and amendments thereto are on file in the office of the City Clerk. Each reference therein to the “legislative body” or “agency” shall refer to the city and each department thereof.
(`83 Code, § 12.08.180)