Hammond's comprehensive map of the United States with portions of Canada and Mexico

Chicago citation style
C.S. Hammond & Company. Hammond's comprehensive map of the United States with portions of Canada and Mexico. 1916. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/7h149z165. (Accessed July 20, 2018.)
APA citation style
C.S. Hammond & Company, (1916) Hammond's comprehensive map of the United States with portions of Canada and Mexico. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/7h149z165
MLA citation style
C.S. Hammond & Company. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/7h149z165>.
Note: These citations are programmatically generated and may be incomplete.