1977 and the Hirsute Hardball Hero – SABR's Baseball Cards Research Committee
Baseball card megaproject – SABR's Baseball Cards Research Committee
1977 and the Hirsute Hardball Hero – SABR's Baseball Cards Research Committee
SABR's Baseball Cards Research Committee
SABR 50 at 50: Baseball Cards – Society for American Baseball Research
SABR 50 at 50: Baseball Cards – Society for American Baseball Research
SABR Century: 1921 Introduction – Society for American Baseball Research
1977 and the Hirsute Hardball Hero – SABR's Baseball Cards Research Committee
1977 and the Hirsute Hardball Hero – SABR's Baseball Cards Research Committee
1977 and the Hirsute Hardball Hero – SABR's Baseball Cards Research Committee