1934 map of the Indiana state highway system

Chicago citation style
Indiana. State Highway Commission. 1934 map of the Indiana state highway system. 1934. Retrieved from the Digital Public Library of America, http://cdm16066.contentdm.oclc.org/cdm/ref/collection/p15078coll8/id/1159. (Accessed July 18, 2018.)
APA citation style
Indiana. State Highway Commission, (1934) 1934 map of the Indiana state highway system. Retrieved from the Digital Public Library of America, http://cdm16066.contentdm.oclc.org/cdm/ref/collection/p15078coll8/id/1159
MLA citation style
Indiana. State Highway Commission. Retrieved from the Digital Public Library of America <http://cdm16066.contentdm.oclc.org/cdm/ref/collection/p15078coll8/id/1159>.
Note: These citations are programmatically generated and may be incomplete.