1972 Official Highway Map

Chicago citation style
Illinois. Dept. of Transportation. 1972 Official Highway Map. 1972. Retrieved from the Digital Public Library of America, http://www.idaillinois.org/cdm/ref/collection/isl9/id/147. (Accessed October 22, 2020.)
APA citation style
Illinois. Dept. of Transportation, (1972) 1972 Official Highway Map. Retrieved from the Digital Public Library of America, http://www.idaillinois.org/cdm/ref/collection/isl9/id/147
MLA citation style
Illinois. Dept. of Transportation. Retrieved from the Digital Public Library of America <http://www.idaillinois.org/cdm/ref/collection/isl9/id/147>.
Note: These citations are programmatically generated and may be incomplete.