United States. Bureau of Economic Analysis. "Gross Domestic Product: Second Quarter 2001 (Final) | Corporate Profits: Second Quarter 2001 (Revised), BEA 01-29,"
Bureau of Economic Analysis (BEA) News Releases
(September 28, 2001).
https://fraser.stlouisfed.org/title/6148/item/597805, accessed on July 2, 2025.