Lechner, J. (2025). Death is our business: Russian mercenaries and the new era of private warfare. Bloomsbury Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLechner, John. Death Is Our Business: Russian Mercenaries and the New Era of Private Warfare. New York, NY: Bloomsbury Publishing, 2025.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLechner, John. Death Is Our Business: Russian Mercenaries and the New Era of Private Warfare. Bloomsbury Publishing, 2025.
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