Vogel, S. (2019). Betrayal in Berlin: The true story of the Cold War's most audacious espionage operation (First edition.). Custom House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVogel, Steve. Betrayal in Berlin: The True Story of the Cold War's Most Audacious Espionage Operation. First edition. New York, NY: Custom House, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVogel, Steve. Betrayal in Berlin: The True Story of the Cold War's Most Audacious Espionage Operation. First edition. Custom House, 2019.
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