Federal Reserve Bank of Dallas. "Changes in Time Schedule for Cash Items, Circular No. 68-132," District Notices (Federal Reserve Bank of Dallas) (August 27, 1968). https://fraser.stlouisfed.org/title/5569/item/543893, accessed on January 25, 2020.
Changes in Time Schedule for Cash Items. Amended Page 3, of Bulletin No. 8a. Effective 9-1-68.