Post route map of the state of Maine showing post offices with the intermediate distances on mail routes in operation on the 1st of December, 1903

Chicago citation style
United States, Post Office Dept. Post route map of the state of Maine showing post offices with the intermediate distances on mail routes in operation on the 1st of December, 1903. 1903. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/cj82km77v. (Accessed July 18, 2018.)
APA citation style
United States, Post Office Dept, (1903) Post route map of the state of Maine showing post offices with the intermediate distances on mail routes in operation on the 1st of December, 1903. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/cj82km77v
MLA citation style
United States, Post Office Dept. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/cj82km77v>.
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