Sheinkin, S. (2017). Undefeated: Jim Thorpe and the Carlisle Indian School Football team (First edition.). Roaring Brook Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSheinkin, Steve. Undefeated: Jim Thorpe and the Carlisle Indian School Football Team. First edition. New York, New York: Roaring Brook Press, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSheinkin, Steve. Undefeated: Jim Thorpe and the Carlisle Indian School Football Team. First edition. Roaring Brook Press, 2017.
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