United States. Bureau of Economic Analysis. "Gross Domestic Product: Third Quarter 1991 (Final) | Corporate Profits: Third Quarter 1991 (Revised), BEA 91-59,"
Bureau of Economic Analysis (BEA) News Releases
(December 20, 1991).
https://fraser.stlouisfed.org/title/6148/item/597026, accessed on July 12, 2025.