Board of Governors of the Federal Reserve System (U.S.), 1935-. "Settlement of administrative proceedings against Clark M. Clifford and Robert A. Altman : Attachment 1" in Press Releases of the Board of Governors of the Federal Reserve System
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https://fraser.stlouisfed.org/title/9237/item/674576/content/pdf/frsbog_pr_19980203-1, accessed on September 8, 2026.