John Kruk - Baseball Trading Card Database
1993 Pinnacle #4 Deion Sanders - NM-MT - Baseball Card Connection
San Diego Padres Price List - Supercollector Catalog
San Diego Padres Price List - Supercollector Catalog
Baseball Tradelist
Trading Card Lots, Sports Trading Cards, Sporting Goods - PicClick AU
Graig Nettles - Expos #277 Score 1989 Baseball Trading Card
1989 Topps Traded #63T John Kruk Philadelphia Phillies
Team Penske album, Cardboard History Gallery