Federal Reserve Bank of Dallas. "Holidays, Circular No. 81-71," District Notices (Federal Reserve Bank of Dallas) (April 8, 1981). https://fraser.stlouisfed.org/scribd/?item_id=541253&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19810408_no81-071.pdf&start_page=1, accessed on September 20, 2017.
Revised Schedule of Official Holidays and Business Hours of All Federal Reserve Bank and Branches for the Year 1981