Map of Morgan County, Indiana showing rural delivery service

Chicago citation style
United States. Post Office Department. Map of Morgan County, Indiana showing rural delivery service. 1911. Retrieved from the Digital Public Library of America, http://cdm16066.contentdm.oclc.org/cdm/ref/collection/p15078coll8/id/977. (Accessed July 20, 2018.)
APA citation style
United States. Post Office Department, (1911) Map of Morgan County, Indiana showing rural delivery service. Retrieved from the Digital Public Library of America, http://cdm16066.contentdm.oclc.org/cdm/ref/collection/p15078coll8/id/977
MLA citation style
United States. Post Office Department. Retrieved from the Digital Public Library of America <http://cdm16066.contentdm.oclc.org/cdm/ref/collection/p15078coll8/id/977>.
Note: These citations are programmatically generated and may be incomplete.