Federal Reserve Bank of Dallas. "Proposed Amendments to Regulations D and Q, Circular No. 70-55," District Notices (Federal Reserve Bank of Dallas) (March 6, 1970). https://fraser.stlouisfed.org/scribd/?item_id=542863&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19700306_no70-055.pdf, accessed on November 22, 2017.
Proposal Re Regulations D and Q Subordinated Notes and Debentures. Board's Press Release March 2, 1970.