Map of Boston inner harbor

Chicago citation style
Massachusetts, Directors of the Port of Boston. Map of Boston inner harbor. 1914. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/js956j23d. (Accessed July 17, 2018.)
APA citation style
Massachusetts, Directors of the Port of Boston, (1914) Map of Boston inner harbor. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/js956j23d
MLA citation style
Massachusetts, Directors of the Port of Boston. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/js956j23d>.
Note: These citations are programmatically generated and may be incomplete.