1996 Yankees OAL Baseball Signed by (22) with Derek Jeter, Mariano Rivera, Andy Pettitte, Bernie Williams Inscribed 1996 World Champs with Display Case (PSA)
The case for retiring Bernie Williams' number - Pinstripe Alley
Derek Jeter: An A-to-Z look back at the former Yankees captain's career - Sports Illustrated
Derek Jeter, Bernie Williams & Andy Pettitte Signed Yankees Magazine Beckett COA
1998 Pinnacle Inside - Stand Up Guys #19-A - Derek Jeter, Bernie Williams (Andy Pettitte, Tino Martinez)
Andy Pettitte, Jorge Posada, Bernie Williams to have numbers retired by Yankees
Derek Jeter/ Jorge Posada/ Andy Pettitte/ Bernie Williams 2004 Donruss
Yanks Appear Closer to Signing Pettitte - The New York Times
October 13, 2001: Derek Jeter's iconic flip helps Yankees stave off elimination against Oakland – Society for American Baseball Research
1996 Yankees OAL Baseball Signed by (22) with Derek Jeter, Mariano Rivera, Andy Pettitte, Bernie Williams Inscribed 1996 World Champs with Display Case (PSA)
Andy Pettitte Memorabilia, Autographed Andy Pettitte Collectibles
Yankees also retiring numbers for Bernie Williams and Jorge Posada
Bernie Williams - Wikipedia