Faux Cards – SABR's Baseball Cards Research Committee
1990 Topps Baseball Card Checklist
1968 Topps, the untold story
Faux Cards – SABR's Baseball Cards Research Committee
1968 Topps, the untold story
Baseball Card Websites: The Ultimate Guide to 450+ of the Best Hobby Sites (UPDATED for 2019) – Wax Pack Gods
Bob Lemke's Blog: September 2016
Bob Lemke's Blog: Checklist of my custom baseball cards 1970-1990
Statis-Pro Baseball Cards for Players who Changed Teams and 4,000 Players Fielding
Bob Lemke's Blog: September 2016
1969–1980 – Page 13 – SABR's Baseball Cards Research Committee
ENR Southeast People Showcase Archive
1990 Topps Baseball Cards — The Ultimate Guide, by Moonlighting Writer