Board of Governors of the Federal Reserve System (U.S.), 1935-. "Attachment to the H.15 and G.13 Statistical Releases : Information About the Treasury Constant Maturity Yield Series,"
H.15 Selected Interest Rates
([April 1977]).
https://fraser.stlouisfed.org/title/86/item/500893, accessed on April 11, 2025.
@FedFRASER