Man constructing a map

Chicago citation style
Man constructing a map. Retrieved from the Digital Public Library of America, http://content.mpl.org/cdm/ref/collection/HstoricPho/id/2643. (Accessed November 21, 2019.)
APA citation style
Man constructing a map. Retrieved from the Digital Public Library of America, http://content.mpl.org/cdm/ref/collection/HstoricPho/id/2643
MLA citation style
Retrieved from the Digital Public Library of America <http://content.mpl.org/cdm/ref/collection/HstoricPho/id/2643>.
Note: These citations are programmatically generated and may be incomplete.