Century of Progress International Exposition. (1934). 1934, Century of Progress. Western Newspaper Union.
Lua i Stíl Chicago (17ú heag.)Century of Progress International Exposition. 1934, Century of Progress. [Chicago, Ill.]: Western Newspaper Union, 1934.
Lua MLA (8ú heag.)Century of Progress International Exposition. 1934, Century of Progress. Western Newspaper Union, 1934.
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