APA (7th ed.) Citation

United States. National Recovery Administration. (1934). Approved Code 84-Supplement No. 31: Errata sheet, Supplementary Code of Fair Competition for the Warm Air Furnace Pipe and Fitting Manufacturing Industry, as Approved on May 18, 1934. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Recovery Administration. Approved Code 84-Supplement No. 31: Errata Sheet, Supplementary Code of Fair Competition for the Warm Air Furnace Pipe and Fitting Manufacturing Industry, as Approved on May 18, 1934. [Washington]: [s.n.], 1934.

MLA (9th ed.) Citation

United States. National Recovery Administration. Approved Code 84-Supplement No. 31: Errata Sheet, Supplementary Code of Fair Competition for the Warm Air Furnace Pipe and Fitting Manufacturing Industry, as Approved on May 18, 1934. [s.n.], 1934.