United States. Postal Service. Office of the Auditor. (1911). Rules and instructions for settlement of postmasters' accounts. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Postal Service. Office of the Auditor. Rules and Instructions for Settlement of Postmasters' Accounts. [Washington, D.C.]: U.S. Government Printing Office, 1911.
MLA (9th ed.) CitationUnited States. Postal Service. Office of the Auditor. Rules and Instructions for Settlement of Postmasters' Accounts. U.S. Government Printing Office, 1911.
Warning: These citations may not always be 100% accurate.