Hoffman, D. E. (2015). The billion dollar spy: A true story of Cold War espionage and betrayal (First edition.). Doubleday.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHoffman, David E. The Billion Dollar Spy: A True Story of Cold War Espionage and Betrayal. First edition. New York: Doubleday, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHoffman, David E. The Billion Dollar Spy: A True Story of Cold War Espionage and Betrayal. First edition. Doubleday, 2015.
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