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. "May 1920," Federal Reserve Bulletin (May 1920) : 77-77. https://fraser.stlouisfed.org/title/62/item/20601/toc/41278 , accessed on May 8, 2024.