United States. Bureau of Economic Analysis. "Gross Domestic Product: Third Quarter 1991 (Preliminary) | Corporate Profits: Third Quarter 1991 (Preliminary), Revised Estimates 1977-91, BEA 91-55," Bureau of Economic Analysis (BEA) News Releases (December 4, 1991). https://fraser.stlouisfed.org/title/6148/item/597022, accessed on March 15, 2025.