Dyfyniad APA

Century of Progress International Exposition. (1934). World's Fair clip sheet. Press Division, A Century of Progress.

Dyfyniad Arddull Chicago

Century of Progress International Exposition. World's Fair Clip Sheet. Chicago, Ill.: Press Division, A Century of Progress, 1934.

Dyfyniad MLA

Century of Progress International Exposition. World's Fair Clip Sheet. Press Division, A Century of Progress, 1934.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.