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. "July 1959," Federal Reserve Bulletin (July 1959) : 100-100. https://fraser.stlouisfed.org/title/62/item/21295/toc/200934 , accessed on March 28, 2024.