Federal Reserve Bank of Dallas. "Preliminary Announcement - Exchange Offering," District Notices (Federal Reserve Bank of Dallas) (July 18, 1957). https://fraser.stlouisfed.org/title/5569/item/551171, accessed on April 19, 2024.
Federal Reserve Bank of Dallas. "Preliminary Announcement - Exchange Offering," District Notices (Federal Reserve Bank of Dallas) (July 18, 1957). https://fraser.stlouisfed.org/title/5569/item/551171, accessed on April 19, 2024.