United States. Bureau of Economic Analysis. "Gross Domestic Product: First Quarter 2016 (Second Estimate) | Corporate Profits: First Quarter 2016 (Preliminary Estimate) : Technical Note, BEA 16-24," Bureau of Economic Analysis (BEA) News Releases (May 27, 2016). https://fraser.stlouisfed.org/title/6148/item/602343/content/pdf/bea_newsreleases_20160527_technical-note, accessed on March 18, 2025.