Federal Reserve Bank of Chicago. "Regulation G, Securities Credit by Persons Other Than Banks, Brokers, or Dealers, Regulation T, Credit by Brokers and Dealers, Regulation U, Credit by Banks for the Purpose of Purchasing or Carrying Margin Stocks, Circular No. 2176" in Federal Reserve Bank of Chicago Bulletins and Circular Letters (August 4, 1971). https://fraser.stlouisfed.org/title/7180/item/666295, accessed on January 30, 2025.