United States. Bureau of Economic Analysis. "Gross Domestic Product: First Quarter 1993 (Preliminary) | Corporate Profits: First Quarter 1993 (Preliminary), BEA 93-20," Bureau of Economic Analysis (BEA) News Releases (May 28, 1993). https://fraser.stlouisfed.org/title/6148/item/597319, accessed on March 20, 2025.