ckamka – SABR's Baseball Cards Research Committee
Howie Long Football Trading Card Database
Baseball Card Cameos Checklist - Supercollector Catalog
justgreg Member Profile on
1984 Topps Football Cards: Most Valuable (Top Picks)
#393 Howie Long. - FeaturingHowie Long andJimbo Covert. Unless otherwise noted, raw modern cards are listed in Near Mint-Mint condition or better.
1992 Pro Line Profiles Howie Long Jimbo Covert #393 HOF
1992 Pro Line Profiles - [Base] - National Convention #_HOLO.7 - Howie Long (7 of 9)
Howie Long Football Trading Card Database
Howie Long Auto Card FOR SALE! - PicClick