Federal Reserve Bank of Dallas. "Iranian Assets Control, Circular No. 80-79," District Notices (Federal Reserve Bank of Dallas) (April 22, 1980). https://fraser.stlouisfed.org/title/5569/item/541007, accessed on April 3, 2020.
Iranian Assets Control Regulations, Amendments. Effective 4-7-80. Also Enclosing Forms TFR-615/616 Census of Blocked Iranian N Assets of Claims Against Iran.