Federal Reserve Bank of Dallas. "Cash Services Survey, Circular No. 81-163," District Notices (Federal Reserve Bank of Dallas) (August 12, 1981). https://fraser.stlouisfed.org/scribd/?item_id=541345&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19810812_no81-163.pdf, accessed on November 19, 2017.
Bulletin 5 Related. Telephone Replies Solicited by 9-15-81 Regarding Anticipated Changes in Use of Cash Services Effective 1-1-82.