Federal Reserve Bank of New York. "Changes in List of OTC Margin Stocks," Federal Reserve Bank of New York Circulars (October 27, 1971). https://fraser.stlouisfed.org/title/466/item/14610, accessed on April 24, 2024.
Federal Reserve Bank of New York. "Changes in List of OTC Margin Stocks," Federal Reserve Bank of New York Circulars (October 27, 1971). https://fraser.stlouisfed.org/title/466/item/14610, accessed on April 24, 2024.