Langhammer, Jay (Fall 1985). "Sigma Pis in Pro Football"(PDF). The Emerald of Sigma Pi. Vol. 74, no. 3. p. 21. Archived from the original(PDF) on 2016-10-11. Retrieved 2016-09-20.
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Langhammer, Jay (Fall 1985). "Sigma Pis in Pro Football"(PDF). The Emerald of Sigma Pi. Vol. 74, no. 3. p. 21. Archived from the original(PDF) on 2016-10-11. Retrieved 2016-09-20.
