United States. National Archives and Records Service. Office of Records Management. (1971). Managing the mail.
Chicago Style (17th ed.) CitationUnited States. National Archives and Records Service. Office of Records Management. Managing the Mail. [Washington], 1971.
MLA (8th ed.) CitationUnited States. National Archives and Records Service. Office of Records Management. Managing the Mail. 1971.
Warning: These citations may not always be 100% accurate.