Federal Reserve Bank of St. Louis. "Check Routing Symbol," Federal Reserve Bank of St. Louis Circulars (January 21, 1952). https://fraser.stlouisfed.org/title/958/item/37285, accessed on April 18, 2024.
Federal Reserve Bank of St. Louis. "Check Routing Symbol," Federal Reserve Bank of St. Louis Circulars (January 21, 1952). https://fraser.stlouisfed.org/title/958/item/37285, accessed on April 18, 2024.