United States. Bureau of Economic Analysis. "Gross Domestic Product: First Quarter 2017 (Second Estimate) | Corporate Profits: First Quarter 2017 (Preliminary Estimate) : Technical Note, BEA 17-23,"
Bureau of Economic Analysis (BEA) News Releases
(May 26, 2017).
https://fraser.stlouisfed.org/title/6148/item/602494/content/pdf/bea_newsreleases_20170526_technical-note, accessed on June 5, 2025.