The Tragic Death of Bob Kalsu, the Buffalo Bills Player Serving in Vietnam
Remembering NFL players Bob Kalsu and Don Steinbrunner who died in Vietnam War
Web Rumblings: Buffalo Bills News, 5/28 - Buffalo Rumblings
VOCÊ SABIA? - Kalsu: o WOD mais difícil de todos
History of the Buffalo Bills - Wikipedia
A Soldier's Uniform Ranks High in N.F.L. Sales - The New York Times
A Name On The Wall: Bob Kalsu was the only U.S. pro athlete to die in Vietnam - Sports Illustrated
Buffalo Bob Kalsu – Gentle & Mighty Giant
The Life And Sad Death Of Bob Kalsu (Complete Story)
THE WALL OF FACES - Vietnam Veterans Memorial Fund
Pro Football Journal: Memorial Day—Bob Kalsu