Federal Reserve Bank of Dallas. "Routing Number Policy, Circular No. 81-129," District Notices (Federal Reserve Bank of Dallas) (July 1, 1981). https://fraser.stlouisfed.org/scribd/?item_id=541311&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19810701_no81-129.pdf&start_page=1, accessed on October 21, 2017.
Bulletin 8 Related. Regarding Assignments of Routing Number Policy. Review Completed and Action to Taken in All Federal Reserve Districts.