The World's Industrial and Cotton Centennial Exposition, New Orleans, La., U.S.A : plan no. 2, map of the city of New Orleans...

Chicago citation style
The World's Industrial and Cotton Centennial Exposition, New Orleans, La., U.S.A : plan no. 2, map of the city of New Orleans.... Retrieved from the Digital Public Library of America, http://collection1.libraries.psu.edu/cdm/ref/collection/maps1/id/30366. (Accessed September 26, 2018.)
APA citation style
The World's Industrial and Cotton Centennial Exposition, New Orleans, La., U.S.A : plan no. 2, map of the city of New Orleans.... Retrieved from the Digital Public Library of America, http://collection1.libraries.psu.edu/cdm/ref/collection/maps1/id/30366
MLA citation style
Retrieved from the Digital Public Library of America <http://collection1.libraries.psu.edu/cdm/ref/collection/maps1/id/30366>.
Note: These citations are programmatically generated and may be incomplete.