Buddy Ryan, Iconic Mastermind of '85 Chicago Bears Defense, Dies – NBC Chicago
Buddy Ryan: How Bears coach invented the 46 defense - Sports Illustrated
Buddy Ryan, Eagles coach and NFL defensive mastermind, dies at 85 – The Morning Call
Buddy Ryan, Eagles coach and NFL defensive mastermind, dies at 85 – The Morning Call
2016 WKU Football Media Guide by WKUSports - Issuu
Legendary Bears defensive coordinator Buddy Ryan dies
Screenwriters Bulletproof Screenwriting
2019 Mississippi State Football Outback Bowl Media Guide by Mississippi State University Athletics - Issuu
Buddy Ryan, Eagles coach and NFL defensive mastermind, dies at 85 – The Morning Call