United States. Bureau of Economic Analysis. "Gross Domestic Product: Fourth Quarter and Annual 2013 (Third Estimate) | Corporate Profits: Fourth Quarter and Annual 2013 : Highlights: GDP Growth Slows in Fourth Quarter, BEA 14-13," Bureau of Economic Analysis (BEA) News Releases (March 27, 2014). https://fraser.stlouisfed.org/title/6148/item/602093/content/pdf/bea_newsreleases_20140327_release-highlights, accessed on March 24, 2025.