Sniderman, Mark S. "The Economy in Perspective : Grist for the Mill," in Federal Reserve Bank of Cleveland. "Economic Trends - September 2007," Economic Trends (Federal Reserve Bank of Cleveland) (September 2007) : 2-3. https://fraser.stlouisfed.org/title/3952/item/493047/toc/505003 , accessed on April 19, 2024.