United States. Postmaster General. (1908). Scheme of city distribution for use in post office at Denver, Colo.; corrected to Oct. 1908. GPO.
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Scheme of City Distribution for Use in Post Office at Denver, Colo.; Corrected to Oct. 1908. [Washington]: GPO, 1908.
MLA (9th ed.) CitationUnited States. Postmaster General. Scheme of City Distribution for Use in Post Office at Denver, Colo.; Corrected to Oct. 1908. GPO, 1908.
Warning: These citations may not always be 100% accurate.