Board of Governors of the Federal Reserve System (U.S.), 1935-. "Seasonally Adjusted Indexes," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "July 14, 1978," G.12.3 Industrial Production (1978-07-14) : 16-16. https://fraser.stlouisfed.org/title/55/item/59612/toc/470424 , accessed on April 19, 2024.