C.A.: 1975 Topps Reggie Jackson
Calaméo - August 2019 Auction
CardCorner: 1968 Topps Manny Sanguillen
Books and Blogs – SABR's Baseball Cards Research Committee
Manny Sanguillen Baseball Cards
1976 Topps Baseball Cards Set checklist, prices, values & information
CardCorner: 1968 Topps Manny Sanguillen
The top 20 cards of the decade
Card Corner: Ed Kirkpatrick and Johnny Briggs: 1973 Topps
Turn back the clock, Topps
1976 Topps Baseball Card Manny Sanguillen C Pittsburgh Pirates
Topps – Page 15 – SABR's Baseball Cards Research Committee