Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industry Subtotals and Individual Series, Not Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 16, 1978," G.12.3 Industrial Production (1978-05-16) : 12-12. https://fraser.stlouisfed.org/title/55/item/59610/toc/470383 , accessed on May 9, 2024.