Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Index Numbers of Commodity Prices," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "July 1926," Federal Reserve Bulletin (July 1926) : 25-25. https://fraser.stlouisfed.org/title/62/item/20655/toc/318900 , accessed on March 29, 2024.