This is a story Yankee pitcher and 'Ball Four' author Jim Bouton didn't want told – New York Daily News
Ball Four' author, ex-Yankees pitcher Jim Bouton dies at 80
Jim Bouton Dead: Ex-Yankees And 'Ball Four' Author Broke Sports Taboos Was 80 – Deadline
1969–1980 – Page 13 – SABR's Baseball Cards Research Committee
Review: 'Ball Four: The Final Pitch' by Jim Bouton
So much more to Jim Bouton's life story than just 'Ball Four' – New York Daily News
Ball four;: My life and hard times throwing the knuckleball in the Big Leagues: Bouton, Jim: : Books
Jim Bouton dies at 80
the joy of sox: Jim Bouton (1939-2019) And The Lasting Impact Of Ball Four