Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Statistics for Federal Reserve Chart Book-Current Series," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "September 1940," Federal Reserve Bulletin (September 1940) : 89-89. https://fraser.stlouisfed.org/title/62/item/21029/toc/137275 , accessed on April 25, 2024.