Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Letter From Asst. Secretary Bethea re Revised Form F. R. 456 Sent Federal Reserve Banks for Tabulating Operating Ratios of Member Banks, Number R-569, Volume 51, Page 199,
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/507441, accessed on March 13, 2026.