Federal Reserve Bank of Dallas. "Changes to Regulations D, M, and Q, Circular No. 73-127," District Notices (Federal Reserve Bank of Dallas) (May 24, 1973). https://fraser.stlouisfed.org/scribd/?item_id=545093&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19730524_no73-127.pdf&start_page=1, accessed on September 25, 2017.
Changes in Supplement to Regulation D and Amendment to Regulation M, Effective 6-21-73, and Supplement to Regulation Q, Effective 5-16-73