Sources
- United States. A Counterintelligence Reader. Vol. 1 Chap. 4. National Counterintelligence Center. no date.
- FBI Venona file - page 37
- FBI Albert Einstein file
- Venona: Decoding Espionage in America, John Earl Haynes and Harvey Klehr, Yale University Press, 1999, pgs. 53, 158, 212, 225, 237, 240, 241, 242, 243, 248.
- The Venona Story by Robert L. Benson
- MacPherson, Myra. "All Governments Lie." New York: Simon & Schuster, 2006.
- Information on Vladimir Pravdin
Read more about this topic: Vladimir Pravdin
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