John Racanelli – SABR's Baseball Cards Research Committee
1989 Topps george brett Values - MAVIN
George Brett Kansas City Royals Baseball Cards, Royals Trading Cards, Signed George Brett Royals Baseball Card
1989 Topps george brett Values - MAVIN
George Brett Kansas City Royals Baseball Cards, Royals Trading Cards, Signed George Brett Royals Baseball Card
Topps George Brett Baseball 1989 Season Sports Trading Cards & Accessories for sale
George Brett Price List - Supercollector Catalog
The West Orange times
1989 Topps george brett Values - MAVIN
George Brett Card
George Brett Price List - Supercollector Catalog
George Brett Price List - Supercollector Catalog
George Brett Price List - Supercollector Catalog
Auction Prices Realized Baseball Cards 1989 Topps George Brett