Federal Reserve Bank of Dallas. "Rates for Discounts and Advances, Circular No. 81-212," District Notices (Federal Reserve Bank of Dallas) (November 5, 1981). https://fraser.stlouisfed.org/scribd/?item_id=541394&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19811105_no81-212.pdf&start_page=1, accessed on October 23, 2017.
Bulletin 2, Supplement A. Basic Discount Rate Reduced From 4 Percent to 13 Percent and Rates for Other Extended Credit Reduced by 1 Percent Effective 11-6-81.