Johnson's map of New York and the adjacent cities

Chicago citation style
Johnson and Ward. Johnson's map of New York and the adjacent cities. 1864. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90f348b. (Accessed July 18, 2018.)
APA citation style
Johnson and Ward, (1864) Johnson's map of New York and the adjacent cities. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90f348b
MLA citation style
Johnson and Ward. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/4m90f348b>.
Note: These citations are programmatically generated and may be incomplete.