Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Letter From Asst. Secretary Bethea re Protective Measures Taken by Federal Reserve Banks Against Sabotage, Number R-966, Volume 56, Page 51,
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/509741, accessed on March 16, 2026.