Harding, L., & Smith, N. G. (2017). A very expensive poison: The assassination of alexander litvinenko and putin's war with the west (Unabridged.). Random House Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarding, Luke, और Nicholas Guy Smith. A Very Expensive Poison: The Assassination of Alexander Litvinenko and Putin's War with the West. Unabridged. New York: Random House Audio, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHarding, Luke, और Nicholas Guy Smith. A Very Expensive Poison: The Assassination of Alexander Litvinenko and Putin's War with the West. Unabridged. Random House Audio, 2017.
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