Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Revised Index Numbers of Wholesale Prices, by Groups of Commodities," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1927," Federal Reserve Bulletin (October 1927) : 15-15. https://fraser.stlouisfed.org/title/62/item/20670/toc/350430 , accessed on April 25, 2024.