United States. Bureau of Economic Analysis. "Third Quarter 1977 : Corporate Profits, Revised Gross National Product (GNP), Revised Gross Domestic Product (GDP), BEA 77-86,"
Bureau of Economic Analysis (BEA) News Releases
(November 17, 1977).
https://fraser.stlouisfed.org/title/6148/item/595700, accessed on March 22, 2025.
@FedFRASER