United States. Bureau of Economic Analysis. "Gross Domestic Product: First Quarter 1993 (Final) | Corporate Profits: First Quarter 1993 (Revised), BEA 93-28," Bureau of Economic Analysis (BEA) News Releases (June 23, 1993). https://fraser.stlouisfed.org/title/6148/item/597327, accessed on March 19, 2025.