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-. "Weekly Hours of Work--Selected Industries," 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-. "January 1968," Economic Indicators (January 1968) : 16-16. https://fraser.stlouisfed.org/title/1/item/577/toc/400830 , accessed on April 23, 2024.