Cita APA (7a ed.)

Century of Progress International Exposition. (1934). 1934, Century of Progress. Western Newspaper Union.

Cita Chicago Style (17a ed.)

Century of Progress International Exposition. 1934, Century of Progress. [Chicago, Ill.]: Western Newspaper Union, 1934.

Cita MLA (8a ed.)

Century of Progress International Exposition. 1934, Century of Progress. Western Newspaper Union, 1934.