Bell, U., & Borges, R. (2017). Present at the creation: My life in the NFL and the rise of America's game. University of Nebraska Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBell, Upton, और Ron Borges. Present at the Creation: My Life in the NFL and the Rise of America's Game. Lincoln: University of Nebraska Press, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBell, Upton, और Ron Borges. Present at the Creation: My Life in the NFL and the Rise of America's Game. University of Nebraska Press, 2017.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.