APA (7th ed.) Citation

United States. Superintendent of Documents. (1934). National Recovery Administration Approved Codes. [s.n.].

Chicago Style (17th ed.) Citation

United States. Superintendent of Documents. National Recovery Administration Approved Codes. [Washington]: [s.n.], 1934.

MLA (9th ed.) Citation

United States. Superintendent of Documents. National Recovery Administration Approved Codes. [s.n.], 1934.

Warning: These citations may not always be 100% accurate.