Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Production Worker Employment in Manufacturing Industries," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1964," Federal Reserve Bulletin (October 1964) : 97-97. https://fraser.stlouisfed.org/title/62/item/21358/toc/121935 , accessed on April 24, 2024.