Jim Bouton, Ball Four author and former MLB pitcher, passes away at 80

Jim Bouton Dead: Ex-Yankees And 'Ball Four' Author Broke Sports Taboos Was 80 – Deadline

Jim Bouton, baseball pitcher whose 'Ball Four' gave irreverent peek inside the game, dies at 80

Obituary: Jim Bouton (1939-2019) – RIP Baseball

Batter up! R.A. Dickey helps us pitch the greatest baseball books of all time - The Globe and Mail

Nemesis: The pitcher with the book on Hank Aaron was baseball's literary pioneer - The Athletic

Jim Bouton Dead: Ex-Yankees And 'Ball Four' Author Broke Sports Taboos Was 80 – Deadline

Former Yankees pitcher and 'Ball Four' author Jim Bouton dies at age 80 - Pinstripe Alley

A Night With Jim Bouton, 45 Years Ago, This Year. - Press Pros Magazine

Sex, drugs and baseball: 'Ball Four' author Jim Bouton died 50 years after the Seattle Pilots' only season