Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Percentage of Increase (or Decrease) in Net Sales," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1921," Federal Reserve Bulletin (February 1921) : 25-25. https://fraser.stlouisfed.org/title/62/item/20520/toc/377235 , accessed on March 28, 2024.