Materials From Jim Bouton's 'Ball Four' Days Going Once, Going Twice - The New York Times
Jim Bouton, former Yankees pitcher, 'Ball Four' author, dies at 80
Jim Bouton Opened Up the Major Leagues to Everyone - The New York Times
Jim Bouton, former Yankees pitcher, 'Ball Four' author, dies at 80
Jim Bouton Dead: Ex-Yankees And 'Ball Four' Author Broke Sports Taboos Was 80 – Deadline
Ball Four' author Jim Bouton smoked baseball inside until the very end - Los Angeles Times
Ball Four at 50 and the Legacy of Jim Bouton – Society for American Baseball Research
Jim Bouton, Baseball Wiki
A Celebration of Baseball Rebel Jim Bouton