Koffler, R. (2021). Putin's playbook: Russia's secret plan to defeat America. Regnery Gateway.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKoffler, Rebekah. Putin's Playbook: Russia's Secret Plan to Defeat America. Washington, D.C.: Regnery Gateway, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKoffler, Rebekah. Putin's Playbook: Russia's Secret Plan to Defeat America. Regnery Gateway, 2021.
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