United States. Bureau of Economic Analysis. "Gross Domestic Product, Second Quarter 2019 (Third Estimate) | Corporate Profits, Second Quarter 2019 (Revised) : Technical Note, BEA 19-47," Bureau of Economic Analysis (BEA) News Releases (September 26, 2019). https://fraser.stlouisfed.org/title/6148/item/602818/content/pdf/bea_newsreleases_20190926_technical-note, accessed on March 17, 2025.