Map of the Northern Pacific R.R. its connections and tributary country

Chicago citation style
National Railway Publication Company. Map of the Northern Pacific R.R. its connections and tributary country. 1880-1889. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/cj82kp57s. (Accessed July 16, 2018.)
APA citation style
National Railway Publication Company, (1880-1889) Map of the Northern Pacific R.R. its connections and tributary country. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/cj82kp57s
MLA citation style
National Railway Publication Company. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/cj82kp57s>.
Note: These citations are programmatically generated and may be incomplete.