Federal Reserve Bank of New York. "5026. Offering of Two Series of Treasury Bills, $1,100,000,000 of 91-Day Bills, Additional Amount, $400,000,000 of 182-Day Bills," Federal Reserve Bank of New York Circulars (April 19, 1961). https://fraser.stlouisfed.org/title/466/item/12539, accessed on February 16, 2025.