Federal Reserve Bank of Chicago. "Madison : Blackboards, Test Tubes and Typewriters," in Federal Reserve Bank of Chicago. "Annual Report 1955 : Growth and Prosperity in Five Midwest Cities," Annual Report of the Federal Reserve Bank of Chicago () : 35-39. https://fraser.stlouisfed.org/title/472/item/529810/toc/517555 , accessed on May 13, 2024.