United States. Patent Office. (1934). Official gazette of the United States Patent Office, [title page, contents, etc., to] Mar. 1934, v. 440. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Patent Office. Official Gazette of the United States Patent Office, [title Page, Contents, Etc., to] Mar. 1934, V. 440. [Washington]: [s.n.], 1934.
MLA (9th ed.) CitationUnited States. Patent Office. Official Gazette of the United States Patent Office, [title Page, Contents, Etc., to] Mar. 1934, V. 440. [s.n.], 1934.
Warning: These citations may not always be 100% accurate.