Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industrial Production," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1982," Annual Statistical Digest (December 1983) : 139-140. https://fraser.stlouisfed.org/title/7/item/23509/toc/366110 , accessed on April 23, 2024.