Federal Reserve Bank of Chicago. "[Statement by the Board of Governors Announcing Proposals to Broaden the Coverage of Margin Requirements and Tighten Regulations Relating to Credit in the Stock Market], Circular No. 1930" in Federal Reserve Bank of Chicago Bulletins and Circular Letters (October 24, 1967). https://fraser.stlouisfed.org/title/7180/item/659164, accessed on December 4, 2024.