United States. Bureau of Economic Analysis. "Gross Domestic Product: Second Quarter 2012 (Second Estimate) | Corporate Profits: Second Quarter 2012 (Preliminary Estimate) : Technical Note (Release), BEA 12-35," Bureau of Economic Analysis (BEA) News Releases (August 29, 2012). https://fraser.stlouisfed.org/title/6148/item/601348/content/pdf/bea_newsreleases_20120829_technical-note, accessed on May 19, 2025.