APA (7th ed.) Citation

United States. National Recovery Administration. (1934). Supplementary code of fair competition for the roofing and sheet metal contracting industry (a division of the construction industry) as approved on May 10, 1934. United States Government Printing Office.

Chicago Style (17th ed.) Citation

United States. National Recovery Administration. Supplementary Code of Fair Competition for the Roofing and Sheet Metal Contracting Industry (a Division of the Construction Industry) as Approved on May 10, 1934. Washington: United States Government Printing Office, 1934.

MLA (9th ed.) Citation

United States. National Recovery Administration. Supplementary Code of Fair Competition for the Roofing and Sheet Metal Contracting Industry (a Division of the Construction Industry) as Approved on May 10, 1934. United States Government Printing Office, 1934.