Map of parts of Middlesex & Essex counties showing the rail road routes between Salem, Lowell, Boston & Methuen

Chicago citation style
Parrott, George B. Map of parts of Middlesex & Essex counties showing the rail road routes between Salem, Lowell, Boston & Methuen. 1847. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/c534g3670. (Accessed July 17, 2018.)
APA citation style
Parrott, George B, (1847) Map of parts of Middlesex & Essex counties showing the rail road routes between Salem, Lowell, Boston & Methuen. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/c534g3670
MLA citation style
Parrott, George B. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/c534g3670>.
Note: These citations are programmatically generated and may be incomplete.