APA (7th ed.) Citation

United States. Railway Mail Service. (1908). General scheme of Maryland, Nov. 1908. GPO.

Chicago Style (17th ed.) Citation

United States. Railway Mail Service. General Scheme of Maryland, Nov. 1908. [Washington]: GPO, 1908.

MLA (9th ed.) Citation

United States. Railway Mail Service. General Scheme of Maryland, Nov. 1908. GPO, 1908.

Warning: These citations may not always be 100% accurate.