APA (7th ed.) Citation

World's Columbian Exposition. (1893). Educational exhibit of the World's Columbian Exposition. [s.n.].

Chicago Style (17th ed.) Citation

World's Columbian Exposition. Educational Exhibit of the World's Columbian Exposition. Chicago: [s.n.], 1893.

MLA (8th ed.) Citation

World's Columbian Exposition. Educational Exhibit of the World's Columbian Exposition. [s.n.], 1893.