APA (7th ed.) Citation

Sparks, G. R. (1923). The dream city: A story of the World's Fair. [s.n.].

Chicago Style (17th ed.) Citation

Sparks, George Robert. The Dream City: A Story of the World's Fair. Chicago: [s.n.], 1923.

MLA (8th ed.) Citation

Sparks, George Robert. The Dream City: A Story of the World's Fair. [s.n.], 1923.