Board of Governors of the Federal Reserve System (U.S.), 1935-. "1985 Revision," G.12.3 Industrial Production (1985-01-01). https://fraser.stlouisfed.org/title/55/item/59687, accessed on April 18, 2024.
Board of Governors of the Federal Reserve System (U.S.), 1935-. "1985 Revision," G.12.3 Industrial Production (1985-01-01). https://fraser.stlouisfed.org/title/55/item/59687, accessed on April 18, 2024.