United States. Bureau of Economic Analysis. "Gross Domestic Product: First Quarter 1999 (Preliminary) | Corporate Profits: First Quarter 1999 (Preliminary), BEA 99-14,"
Bureau of Economic Analysis (BEA) News Releases
(May 27, 1999).
https://fraser.stlouisfed.org/title/6148/item/597690, accessed on July 13, 2025.