United States. Postmaster General. (1909). Scheme of city distribution for use in post office at Baltimore, Md.; corrected to Dec. 1, 1908. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Scheme of City Distribution for Use in Post Office at Baltimore, Md.; Corrected to Dec. 1, 1908. [Place of publication not identified]: U.S. Government Printing Office, 1909.
MLA (9th ed.) CitationUnited States. Postmaster General. Scheme of City Distribution for Use in Post Office at Baltimore, Md.; Corrected to Dec. 1, 1908. U.S. Government Printing Office, 1909.
Warning: These citations may not always be 100% accurate.