APA (7th ed.) Citation

United States. Post Office Department. (1919). General scheme of Virginia. GPO.

Chicago Style (17th ed.) Citation

United States. Post Office Department. General Scheme of Virginia. [Washington]: GPO, 1919.

MLA (9th ed.) Citation

United States. Post Office Department. General Scheme of Virginia. GPO, 1919.

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