Federal Reserve Bank of Dallas. "Revision of Supplement A to Bulletin 10, Circular No. 78-131," District Notices (Federal Reserve Bank of Dallas) (September 15, 1978). https://fraser.stlouisfed.org/scribd/?item_id=542540&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19780915_no78-131.pdf&start_page=1, accessed on October 18, 2017.
Bulletin 10, Revision of Supplement A, Effective 5-5-78. Closing Hours for Cash Items.