Federal Reserve Bank of Dallas. "Bank Service Brochure, Circular No. 77-122," District Notices (Federal Reserve Bank of Dallas) (November 10, 1977). https://fraser.stlouisfed.org/scribd/?item_id=542383&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19771110_no77-122.pdf&start_page=1, accessed on October 20, 2017.
Service Offered to Member Banks by the Federal Reserve Bank of Dallas and Branches at El Paso, Houston, and San Antonio