Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Shipments of Grain and Flour at 14 Interior Centers," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "March 1921," Federal Reserve Bulletin (March 1921) : 79-79. https://fraser.stlouisfed.org/title/62/item/20521/toc/249271 , accessed on April 24, 2024.