APA (7th ed.) Citation

United States. Railway Mail Service. (1906). General scheme of Maine, 1st division, Railway Mail Service, scheme numbers _, 1906. GPO.

Chicago Style (17th ed.) Citation

United States. Railway Mail Service. General Scheme of Maine, 1st Division, Railway Mail Service, Scheme Numbers _, 1906. [Washington]: GPO, 1906.

MLA (9th ed.) Citation

United States. Railway Mail Service. General Scheme of Maine, 1st Division, Railway Mail Service, Scheme Numbers _, 1906. GPO, 1906.

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