Baseball and literary legend Jim Bouton has died - NBC Sports
Final Goodbye: Recalling Influential People Who Died in 2019 – NBC10 Philadelphia
Jim Bouton dies at 80
Ball Four at 50 and the Legacy of Jim Bouton – Society for American Baseball Research
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On the media: Vin Scully is biggest star missing from MLB All-Star game – Daily News
Jim Bouton Opened Up the Major Leagues to Everyone - The New York Times
Jim Bouton, ex-Yankees pitcher and author of book 'Ball Four', dies at 80 - ABC7 New York
Yankees pitcher and 'Ball Four' author Jim Bouton dies at 80 – New York Daily News
SABR Baseball Cards Research Committee – SABR's Baseball Cards Research Committee
Jim Bouton, baseball pitcher whose 'Ball Four' gave irreverent peek inside the game, dies at 80 - The Washington Post
Jim Bouton, baseball pitcher whose 'Ball Four' gave irreverent peek inside the game, dies at 80