Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Member Bank Reserve Balances, by Classes of Banks," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1938," Federal Reserve Bulletin (May 1938) : 38-38. https://fraser.stlouisfed.org/title/62/item/21001/toc/276673 , accessed on March 29, 2024.