Celebrating Bob Gibson's 1968 Season and 1.12 ERA - Viva El Birdos
Zack Greinke's adjusted ERA is better than Bob Gibson's in 1968, by Jon Weisman
Sep-27-1968: Gibson Finishes With 1.12 ERA in the “Year of the Pitcher” – Trophy Lives
Bob Gibson, fierce St. Louis ace, dies at 84
The All-Time MLB Team, right-handed starting pitchers: Bob Gibson and Cy Young - AZ Snake Pit
November 13, 1968: Bob Gibson named National League MVP
Year of the Pitcher: Bob Gibson, Denny McLain, and the End of Baseball's Golden Age eBook : Pappu, Sridhar: : Books
Bob Gibson – Society for American Baseball Research
Bob Gibson, Biography, Statistics, & Facts
Trevor Rosenthal, the Cardinals' Closer, Enjoys Reaching Into the Past - The New York Times
Remembering Bob Gibson and his Canadian connections - Cooperstowners in Canada
Cardinals celebrate Bob Gibson's career through music