Six maps of areas in Massachusetts

Chicago citation style
Parker, Warren S. Six maps of areas in Massachusetts. 1870-1930. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/7h14b531p. (Accessed June 20, 2018.)
APA citation style
Parker, Warren S, (1870-1930) Six maps of areas in Massachusetts. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/7h14b531p
MLA citation style
Parker, Warren S. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/7h14b531p>.
Note: These citations are programmatically generated and may be incomplete.