RR Auction: Sports Memorabilia Auction by RR Auction - Issuu
Non-Flagship – SABR's Baseball Cards Research Committee
1974 Topps Baseball Cards Complete Your Set - U-Pick #'s 450
Kelloggs – SABR's Baseball Cards Research Committee
2019 Topps Archives Baseball Checklist, Set Info, Boxes
1983 Topps Baseball Cards — The Ultimate Guide
1971 Topps Rusty Staub
1978 Topps BLANK-BACK PROOF #370 Rusty Staub (Tigers)
Kelloggs – SABR's Baseball Cards Research Committee
1968 Topps, the untold story
Mike Schmidt Price List - Supercollector Catalog
Calaméo - 2019 Fall Auction