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. "August 1920," Federal Reserve Bulletin (August 1920) : 73-74. https://fraser.stlouisfed.org/title/62/item/20604/toc/383006 , accessed on April 18, 2024.