United States. Bureau of Economic Analysis. "Gross Domestic Product: Third Quarter 2008 (Final)|Corporate Profits: Third Quarter 2008 (Final) : Full Release, BEA 08-59," Bureau of Economic Analysis (BEA) News Releases (December 23, 2008). https://fraser.stlouisfed.org/title/6148/item/600490/content/pdf/bea_newsreleases_20081223, accessed on March 21, 2025.