APA (7th ed.) Citation

United States. Post Office Department. (1919). Scheme of Colorado; Chicago, Ill. standpoint. GPO.

Chicago Style (17th ed.) Citation

United States. Post Office Department. Scheme of Colorado; Chicago, Ill. Standpoint. [Washington]: GPO, 1919.

MLA (8th ed.) Citation

United States. Post Office Department. Scheme of Colorado; Chicago, Ill. Standpoint. GPO, 1919.

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