Gaylord Perry – Society for American Baseball Research
1984 Topps Baseball Checklist, Team Sets, Most Valuable Cards, Box Info
Nothing to Gloss Over – SABR's Baseball Cards Research Committee
O-Pee-Chee
League Leader Sports Cards
Lest we forget: Phil Niekro
Top Gaylord Perry Baseball Cards, Vintage, Rookies, Autographs
25 Most Valuable 1984 Topps Baseball Cards - Old Sports Cards
Honoring Gaylord Perry: Major League Baseball Hall of Famer - High Country Press
Kellogg's cards from 1970 started a 14-year baseball card run - Sports Collectors Digest
Greg Minton Cardboard Gods