Naperville Telephone Directory, 1949 May

Chicago citation style
Illinois Bell Telephone Company. Naperville Telephone Directory, 1949 May. 05/1949. Retrieved from the Digital Public Library of America, http://www.idaillinois.org/cdm/ref/collection/npl/id/9749. (Accessed December 4, 2020.)
APA citation style
Illinois Bell Telephone Company, (05/1949) Naperville Telephone Directory, 1949 May. Retrieved from the Digital Public Library of America, http://www.idaillinois.org/cdm/ref/collection/npl/id/9749
MLA citation style
Illinois Bell Telephone Company. Retrieved from the Digital Public Library of America <http://www.idaillinois.org/cdm/ref/collection/npl/id/9749>.
Note: These citations are programmatically generated and may be incomplete.