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-. "Productivity and Related Data, Private Business Economy," 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-. "October 1977," Economic Indicators (October 1977) : 18-18. https://fraser.stlouisfed.org/title/1/item/218/toc/240610 , accessed on April 18, 2024.