Fehrman, C. (2020). Author in chief: The untold story of our presidents and the books they wrote (First Avid Reader Press hardcover edition.). Avid Reader Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFehrman, Craig. Author in Chief: The Untold Story of Our Presidents and the Books They Wrote. First Avid Reader Press hardcover edition. New York: Avid Reader Press, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFehrman, Craig. Author in Chief: The Untold Story of Our Presidents and the Books They Wrote. First Avid Reader Press hardcover edition. Avid Reader Press, 2020.
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