Board of Governors of the Federal Reserve System (U.S.), 1935-. "Output and Capacity for Manufacturing and Industrial Materials," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "April 17, 1978," G.3 Capacity Utilization, Manufacturing, Mining, Utilities and Industrial Materials (1978-04-17) : 2-2. https://fraser.stlouisfed.org/title/51/item/56704/toc/452581 , accessed on May 10, 2024.