Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industrial Production: Gross Value of Products," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "December 15, 1993," G.17 Industrial Production and Capacity Utilization (1993-12-15) : 15-15. https://fraser.stlouisfed.org/title/77/item/63622/toc/455331 , accessed on April 25, 2024.