Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Capacity Utilization in Major Materials Industries," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "August 1973," Federal Reserve Bulletin (August 1973) : 17-19. https://fraser.stlouisfed.org/title/62/item/21464/toc/130453 , accessed on April 19, 2024.