World's Columbian Exposition. (1893). Educational exhibit of the World's Columbian Exposition. [s.n.].
Citace podle Chicago (17th ed.)World's Columbian Exposition. Educational Exhibit of the World's Columbian Exposition. Chicago: [s.n.], 1893.
Citace podle MLA (8th ed.)World's Columbian Exposition. Educational Exhibit of the World's Columbian Exposition. [s.n.], 1893.
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