Dunbar NE

Chicago citation style
Geological Survey (U.S. Dunbar NE. 1972. Retrieved from the Digital Public Library of America, http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/2251. (Accessed December 7, 2019.)
APA citation style
Geological Survey (U.S, (1972) Dunbar NE. Retrieved from the Digital Public Library of America, http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/2251
MLA citation style
Geological Survey (U.S. Retrieved from the Digital Public Library of America <http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/2251>.
Note: These citations are programmatically generated and may be incomplete.