Federal Reserve Bank of Dallas. "Cash Letters to Be Charged on Normal Banking Days, Circular No. 81-168," District Notices (Federal Reserve Bank of Dallas) (August 24, 1981). https://fraser.stlouisfed.org/scribd/?item_id=541350&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19810824_no81-168.pdf&start_page=1, accessed on September 25, 2017.
Bulletin 8 Related. Effective 9-15-81, Cash Letters to Be Charged on Normal Banking Days Though Payor Institution Closed.