Baer, G., Protess, D., Chicago History Museum, WTTW, & Window to the World Communications, I. (2008). Hidden Chicago. Window to the World Communications, Inc..
Chicago Style (17th ed.) CitationBaer, Geoffrey, Dan Protess, Chicago History Museum, WTTW, and Inc Window to the World Communications. Hidden Chicago. [Chicago, Ill.]: Window to the World Communications, Inc., 2008.
MLA (8th ed.) CitationBaer, Geoffrey, et al. Hidden Chicago. Window to the World Communications, Inc., 2008.
Warning: These citations may not always be 100% accurate.