Leonard, C., & Roy, J. (2019). Kochland: The secret history of koch industries and corporate power in america (Unabridged.). Simon & Schuster Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLeonard, Christopher, और Jacques Roy. Kochland: The Secret History of Koch Industries and Corporate Power in America. Unabridged. New York: Simon & Schuster Audio, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLeonard, Christopher, और Jacques Roy. Kochland: The Secret History of Koch Industries and Corporate Power in America. Unabridged. Simon & Schuster Audio, 2019.
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