Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Index Numbers of Wholesale Prices in the United States," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1923," Federal Reserve Bulletin (February 1923) : 72-72. https://fraser.stlouisfed.org/title/62/item/20544/toc/208760 , accessed on April 19, 2024.