Paulsen, G. (2001). Guts: The true stories behind Hatchet and the Brian books. Delacorte Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPaulsen, Gary. Guts: The True Stories Behind Hatchet and the Brian Books. New York: Delacorte Press, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPaulsen, Gary. Guts: The True Stories Behind Hatchet and the Brian Books. Delacorte Press, 2001.
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