1979 Topps Comics Baseball Cards Set checklist, prices, values & information
1980 Topps Baseball Checklist, Team Set Lists and Details - Beckett News
1983 Topps Baseball Cards — The Ultimate Guide, by Moonlighting Writer
Steve Braun and Steve Brye
Craig Swan Baseball Cards
1980 Topps Baseball Checklist, Team Set Lists and Details - Beckett News
Auction Prices Realized Baseball Cards 1979 Topps Ron Guidry
1983 Topps Baseball Cards — The Ultimate Guide, by Moonlighting Writer
1979 Topps Baseball - Trading Card Database