Dyfyniad APA

United States. World's Columbian Commission. (1891). Classification of the World's Columbian exposition, Chicago, U.S.A., 1893. Donohue and Henneberry.

Dyfyniad Arddull Chicago

United States. World's Columbian Commission. Classification of the World's Columbian Exposition, Chicago, U.S.A., 1893. Chicago: Donohue and Henneberry, 1891.

Dyfyniad MLA

United States. World's Columbian Commission. Classification of the World's Columbian Exposition, Chicago, U.S.A., 1893. Donohue and Henneberry, 1891.

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