Board of Governors of the Federal Reserve System (U.S.), 1935-. "June 16, 1967," G.12.3 Industrial Production (1967-06-16). https://fraser.stlouisfed.org/title/55/item/494022, accessed on March 29, 2024.
Board of Governors of the Federal Reserve System (U.S.), 1935-. "June 16, 1967," G.12.3 Industrial Production (1967-06-16). https://fraser.stlouisfed.org/title/55/item/494022, accessed on March 29, 2024.