1975 - 1977 Houston Astros Vintage Baseball Trading Cards
1977 Topps Baseball #260 J.R. Richard Houston Astros 1
1977 Baseball Cards Update: 1977 Houston Astros
Astros Price List - Supercollector Catalog
JR Richard Baseball Trading Card Database
J.R. Richard Baseball Cards by Baseball Almanac
J.R. Richard, power pitcher for Astros in '70s, dies
2023 Topps Heritage Baseball – Sports Card Market
The astros baseball card page, Buy Baseball Cards
J.R. Richard Gallery Trading Card Database