Sheinkin, S. (2019). Undefeated: Jim Thorpe and the Carlisle Indian School football team (First Square Fish edition.). Square Fish.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSheinkin, Steve. Undefeated: Jim Thorpe and the Carlisle Indian School Football Team. First Square Fish edition. New York: Square Fish, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSheinkin, Steve. Undefeated: Jim Thorpe and the Carlisle Indian School Football Team. First Square Fish edition. Square Fish, 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.