Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Letter From Asst. Secretary Bethea re Recommendation to Federal Reserve Banks That Authority for Signing Certificates for Travel on Scheduled Air Carriers Be Restricted, Number S-436, Volume 56, Page 130,
Mimeograph Letters and Statements of the Board.
Board of Governors of the Federal Reserve System (U.S.), 1935-.
https://fraser.stlouisfed.org/archival/4957/item/509781, accessed on March 14, 2026.