United States. Bureau of Economic Analysis. "Gross Domestic Product: Second Quarter 2013 (Second Estimate) | Corporate Profits: Second Quarter 2013 (Preliminary Estimate) : Highlights: GDP Growth Picks Up in Second Quarter, BEA 13-38," Bureau of Economic Analysis (BEA) News Releases (August 29, 2013). https://fraser.stlouisfed.org/title/6148/item/601561/content/pdf/bea_newsreleases_20130829_release-highlights, accessed on May 19, 2025.