This day in sports: George Brett denied homer due to pine tar - Los Angeles Times
The History of Pine Tar in Baseball
Hall of Famer George Brett on Pine Tar Game, 40 years later - ABC7 New York
Pine Tar Game: Story behind George Brett's controversial home run - Sports Illustrated
Brett on 30th anniversary of Pine Tar Game
1930's Vintage Oriole Brand Baseball Pine Tar As Used By George Brett/Babe Ruth
30 Years Later, Remembering George Brett's Pine Tar Incident
When All the Zingers Were Fit to Print - The New York Times
The Pine Tar Incident: Brett v. McClelland - July 24, 1983
George Brett - Pine Tar incident : r/baseball
Hall of Famer George Brett on Pine Tar Game, 40 years later - ESPN