Map of the Harbors of Duluth, Minn. and Superior, Wis.

Chicago citation style
United States. Army. Corps of Engineers. Map of the Harbors of Duluth, Minn. and Superior, Wis.. 1893. Retrieved from the Digital Public Library of America, http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/13482. (Accessed March 28, 2024.)
APA citation style
United States. Army. Corps of Engineers, (1893) Map of the Harbors of Duluth, Minn. and Superior, Wis.. Retrieved from the Digital Public Library of America, http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/13482
MLA citation style
United States. Army. Corps of Engineers. Retrieved from the Digital Public Library of America <http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/13482>.
Note: These citations are programmatically generated and may be incomplete.