United States. Bureau of Economic Analysis. "Gross Domestic Product, First Quarter 2020 (Second Estimate) | Corporate Profits, First Quarter 2020 (Preliminary Estimate), BEA 20-23,"
Bureau of Economic Analysis (BEA) News Releases
(May 28, 2020).
https://fraser.stlouisfed.org/title/6148/item/602898, accessed on March 17, 2025.