United States. Bureau of Economic Analysis. "Gross National Product: Fourth Quarter and Year 1983 (Flash), Third Quarter 1983 (Revised) | Corporate Profits: Third Quarter 1983 (Revised), BEA 83-67,"
Bureau of Economic Analysis (BEA) News Releases
(December 21, 1983).
https://fraser.stlouisfed.org/title/6148/item/596301, accessed on June 24, 2025.