Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Reserve Bank Credit Outstanding and Principal Factors in Changes, by Months," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "September 1928," Federal Reserve Bulletin (September 1928) : 14-14. https://fraser.stlouisfed.org/title/62/item/20681/toc/131334 , accessed on March 28, 2024.