Federal Reserve Bank of Chicago. "[Request for Subscriptions for United States Treasury 4 1/2% Certificates of Indebtedness Offered in Anticipation of the Third Liberty Loan], Circular no. 67" in Federal Reserve Bank of Chicago Bulletins and Circular Letters (February 26, 1918). https://fraser.stlouisfed.org/title/7180/item/655411, accessed on November 21, 2024.