62 Single Season Home Runs Sammy Sosa 23kt Gold Card In
TCMA and SSPC – Page 2 – SABR's Baseball Cards Research Committee
1995–2010 – SABR's Baseball Cards Research Committee
Heritage Auctions
Chicago Cubs Baseball 1999 Vintage Sports Magazines for sale
The unwelcome return of the future star(s)
The size of Topps Big Baseball cards played a role in its short life - Sports Collectors Digest
Barry Bonds - Wikipedia
Salvino's Baby Bammers Sammy Sosa & Mark Grace 1999
Pinnacle and Score – SABR's Baseball Cards Research Committee
Mark Mcgwire & Sammy Sosa Signed Cards Plaque
Mark Mcgwire & Sammy Sosa Signed Cards Plaque
SABR's Baseball Cards Research Committee – Page 38
The top 20 cards of the decade