Federal Reserve Bank of Dallas. "Revised Regulation O Pamphlet, Circular No. 80-21," District Notices (Federal Reserve Bank of Dallas) (February 6, 1980). https://fraser.stlouisfed.org/scribd/?item_id=540947&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19800206_no80-021.pdf&start_page=1, accessed on September 24, 2017.
Regulation O Loans to Executive Officers, Directors, and Principal Shareholders of Member Banks. Pamphlet Amended Effective 12-31-79.