Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Consumers' Prices," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "September 1968," Federal Reserve Bulletin (September 1968) : 133-133. https://fraser.stlouisfed.org/title/62/item/21405/toc/65213 , accessed on May 9, 2024.