APA (7th ed.) Citation

Federal Writers' Project (Ill.) & Hansen, H. (1974). Illinois: A descriptive and historical guide (New rev. ed.). Hastings House.

Chicago Style (17th ed.) Citation

Federal Writers' Project (Ill.) and Harry Hansen. Illinois: A Descriptive and Historical Guide. New rev. ed. New York: Hastings House, 1974.

MLA (9th ed.) Citation

Federal Writers' Project (Ill.) and Harry Hansen. Illinois: A Descriptive and Historical Guide. New rev. ed. Hastings House, 1974.