United States. Bureau of Economic Analysis. "Gross National Product: Third Quarter 1983 (Flash Estimate), Second Quarter 1983 (Revised) | Corporate Profits: Second Quarter 1983 (Revised), BEA 83-52,"
Bureau of Economic Analysis (BEA) News Releases
(September 21, 1983).
https://fraser.stlouisfed.org/title/6148/item/596278, accessed on June 23, 2025.