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. "February 1963," Federal Reserve Bulletin (February 1963) : 143-143. https://fraser.stlouisfed.org/title/62/item/21338/toc/415841 , accessed on May 8, 2024.