APA (7th ed.) Citation

United States. Railway Mail Service. (1904). General scheme of Arkansas, May 1904. GPO.

Chicago Style (17th ed.) Citation

United States. Railway Mail Service. General Scheme of Arkansas, May 1904. [Washington]: GPO, 1904.

MLA (9th ed.) Citation

United States. Railway Mail Service. General Scheme of Arkansas, May 1904. GPO, 1904.

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