United States. Postmaster General. (1911). Information issued by 2nd Assistant Postmaster General relative to transportation of mails by railroads. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Information Issued by 2nd Assistant Postmaster General Relative to Transportation of Mails by Railroads. Washington: U.S. GPO, 1911.
MLA (9th ed.) CitationUnited States. Postmaster General. Information Issued by 2nd Assistant Postmaster General Relative to Transportation of Mails by Railroads. U.S. GPO, 1911.
Warning: These citations may not always be 100% accurate.