APA (7th ed.) Citation

United States. Railway Mail Service. (1903). Scheme of Ontario, Canada, standpoint Port Huron and Chicago R.P.O., Feb. 1903. GPO.

Chicago Style (17th ed.) Citation

United States. Railway Mail Service. Scheme of Ontario, Canada, Standpoint Port Huron and Chicago R.P.O., Feb. 1903. [Washington]: GPO, 1903.

MLA (9th ed.) Citation

United States. Railway Mail Service. Scheme of Ontario, Canada, Standpoint Port Huron and Chicago R.P.O., Feb. 1903. GPO, 1903.