Federal Reserve Bank of Dallas. "Revised List of OTC Margin Stocks, Circular No. 81-199," District Notices (Federal Reserve Bank of Dallas) (October 21, 1981). https://fraser.stlouisfed.org/content/?item_id=541381&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19811021_no81-199.pdf, accessed on July 18, 2018.
Published by Federal Reserve Board 10-2-81, Pursuant to Provisions of Regulations G, T, and U