Fairchild

Chicago citation style
Geological Survey (U.S. Fairchild. 1979. Retrieved from the Digital Public Library of America, http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/2299. (Accessed February 23, 2020.)
APA citation style
Geological Survey (U.S, (1979) Fairchild. Retrieved from the Digital Public Library of America, http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/2299
MLA citation style
Geological Survey (U.S. Retrieved from the Digital Public Library of America <http://content.wisconsinhistory.org/cdm/ref/collection/maps/id/2299>.
Note: These citations are programmatically generated and may be incomplete.