Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Employment in Nonagricultural Establishments, by Industry Division," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1959," Federal Reserve Bulletin (February 1959) : 99-99. https://fraser.stlouisfed.org/title/62/item/21290/toc/225388 , accessed on April 25, 2024.