United States. National Recovery Administration. (1935). Approved Code 32-Supplement No. 3-Reprint: Supplementary Code of Fair Competition for the Air Filter Industry (A Division of the Machinery and Allied Products Industry), as Approved on July 21, 1934. [s.n.].
Chicago Style (17th ed.) CitationUnited States. National Recovery Administration. Approved Code 32-Supplement No. 3-Reprint: Supplementary Code of Fair Competition for the Air Filter Industry (A Division of the Machinery and Allied Products Industry), as Approved on July 21, 1934. [Washington]: [s.n.], 1935.
MLA (9th ed.) CitationUnited States. National Recovery Administration. Approved Code 32-Supplement No. 3-Reprint: Supplementary Code of Fair Competition for the Air Filter Industry (A Division of the Machinery and Allied Products Industry), as Approved on July 21, 1934. [s.n.], 1935.