New York Yankees: Retiring numbers, plaque ceremonies must end
The All-Unretired Yankees, Bronx Pinstripes
Yankees Will Retire Bernie Williams' No. 51 and Jorge Posada's No. 20, News, Scores, Highlights, Stats, and Rumors
Yankees retire Bernie Williams' No. 51, unveil Monument Park plaque - ABC7 San Francisco
Another Jeter Moment in the Bronx
Yankees to Retire Pettitte, Posada and Williams Numbers
Yankees also retiring numbers for Bernie Williams, Jorge Posada; Willie Randolph to be honored in Monument Park - NBC Sports
Andy Pettitte, Jorge Posada, Bernie Williams to have numbers retired by Yankees
Yankees Retired Numbers: 5 Fast Facts You Need to Know
Are there any other Yankees who should have their numbers retired? - Pinstripe Alley
Yankees pay tribute to the great Mariano
Jorge Posada's number retired by New York Yankees - ESPN
Yankees' Jorge Posada gets number retired, plaque in Monument Park