Index Numbers of Wholesale Prices in the United States for Principal Classes of Commodities - Bureau of Labor Statistics
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 for Principal Classes of Commodities - Bureau of Labor Statistics," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1921," Federal Reserve Bulletin (April 1921) : 75-75. https://fraser.stlouisfed.org/title/62/item/20522/toc/7076 , accessed on March 29, 2024.