United States. Bureau of Economic Analysis. "Gross Domestic Product: Third Quarter 2009 (Second Estimate)|Corporate Profits: Third Quarter 2009 (Preliminary), BEA 09-50," Bureau of Economic Analysis (BEA) News Releases (November 24, 2009). https://fraser.stlouisfed.org/title/6148/item/600698, accessed on March 16, 2025.