APA (7th ed.) Citation

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.) Citation

Baer, 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.) Citation

Baer, Geoffrey, et al. Hidden Chicago. Window to the World Communications, Inc., 2008.