Federal Reserve Bank of St. Louis. "Investment Spending," in Federal Reserve Bank of St. Louis. "June 2006," National Economic Trends (June 2006) : 14-15. https://fraser.stlouisfed.org/title/870/item/599598/toc/578610 , accessed on May 4, 2024.
Federal Reserve Bank of St. Louis. "Investment Spending," in Federal Reserve Bank of St. Louis. "June 2006," National Economic Trends (June 2006) : 14-15. https://fraser.stlouisfed.org/title/870/item/599598/toc/578610 , accessed on May 4, 2024.