APA (7th ed.) Citation

United States. National Recovery Administration. (1935). Approved Code No. 555: Errata Sheet, Code of Fair Competition for the Zinc Industry. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Recovery Administration. Approved Code No. 555: Errata Sheet, Code of Fair Competition for the Zinc Industry. [Washington]: [s.n.], 1935.

MLA (9th ed.) Citation

United States. National Recovery Administration. Approved Code No. 555: Errata Sheet, Code of Fair Competition for the Zinc Industry. [s.n.], 1935.