Pollack, P., Belviso, M., Moore, J., & Harrison, N. (2015). Who was J. R. R. Tolkien? Grosset & Dunlap, an imprint of Penguin Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPollack, Pam, Meg Belviso, Jonathan Moore, और Nancy Harrison. Who Was J. R. R. Tolkien? New York: Grosset & Dunlap, an imprint of Penguin Random House, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPollack, Pam, et al. Who Was J. R. R. Tolkien? Grosset & Dunlap, an imprint of Penguin Random House, 2015.
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