Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Ratio of Collections to Accounts Receivable," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "January 1951," Federal Reserve Bulletin (January 1951) : 96-96. https://fraser.stlouisfed.org/title/62/item/21193/toc/57298 , accessed on May 6, 2024.