Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Holdings of Bills and Securities," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1928," Federal Reserve Bulletin (February 1928) : 52-52. https://fraser.stlouisfed.org/title/62/item/20674/toc/274182 , accessed on March 28, 2024.