Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Labor Force, Employment, and Unemployment," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1978," Federal Reserve Bulletin (February 1978) : 135-135. https://fraser.stlouisfed.org/title/62/item/20438/toc/135122 , accessed on March 28, 2024.