Saint Louis map showing World's Fair grounds, 1904

Chicago citation style
Poole Brothers. Saint Louis map showing World's Fair grounds, 1904. Retrieved from the Digital Public Library of America, http://digital.libraries.psu.edu/cdm/ref/collection/maps1/id/30417. (Accessed December 10, 2018.)
APA citation style
Poole Brothers, Saint Louis map showing World's Fair grounds, 1904. Retrieved from the Digital Public Library of America, http://digital.libraries.psu.edu/cdm/ref/collection/maps1/id/30417
MLA citation style
Poole Brothers. Retrieved from the Digital Public Library of America <http://digital.libraries.psu.edu/cdm/ref/collection/maps1/id/30417>.
Note: These citations are programmatically generated and may be incomplete.