Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Index of Ocean Freight Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1924," Federal Reserve Bulletin (May 1924) : 111-111. https://fraser.stlouisfed.org/title/62/item/20561/toc/64299 , accessed on May 13, 2024.