Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Average Monthly Wholesale Prices of Commodities," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1921," Federal Reserve Bulletin (October 1921) : 61-62. https://fraser.stlouisfed.org/title/62/item/20528/toc/349038 , accessed on April 25, 2024.