Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "Changes in GNP and GNP Price Measures," in Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "December 1976," Economic Indicators (December 1976) : 5-5. https://fraser.stlouisfed.org/title/1/item/208/toc/361991 , accessed on May 17, 2024.