Federal Reserve Bank of Dallas. "[Revision of Fiscal Agency Operating Circular No. 2], Circular No. 73-81," District Notices (Federal Reserve Bank of Dallas) (April 13, 1973). https://fraser.stlouisfed.org/scribd/?item_id=545050&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19730413_no73-081.pdf, accessed on December 16, 2017.
Telegraphic Transfers of Marketable Treasury and Agency Securities in Bearer or Book-Entry Form Between Federal Reserve Banks, Effective 4-16-73