1969–1980 – SABR's Baseball Cards Research Committee
Mark McGwire Signed Sports Illustrated 10/5/98 No Label A's Baseball Auto JSA
Reggie Jackson – Society for American Baseball Research
just four teams
Tenace, Anyone? - BallNine
Assorted 1970's Baseball Cards Set checklist, prices, values & information
Oakland Athletic Baseball Cards
Mark McGwire Signed Sports Illustrated 10/5/98 No Label A's Baseball Auto JSA
APRIL 25,1970-THE SPORTING NEWS-BERT CAMPANERIS OF THE OAKLAND A's(MINT)
Cards That Never Were: 1971 Topps AL Stolen Base Leaders: Bert Campaneris, Tommy Harper, Sandy Alomar
Tee-Ball All-Star – SABR's Baseball Cards Research Committee
Autograph Warehouse 703292 Bert Campaneris Signed Oakland As 1971 Topps No.440 Baseball Card, 1 - Harris Teeter