Dyfyniad APA

(1890). Catholic Educational Exhibit, World's Columbian Exposition, Chicago, 1893. Chicago.

Dyfyniad Arddull Chicago

Catholic Educational Exhibit, World's Columbian Exposition, Chicago, 1893. Chicago, 1890.

Dyfyniad MLA

Catholic Educational Exhibit, World's Columbian Exposition, Chicago, 1893. Chicago, 1890.

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