On this day in 1929, New York Yankees revealed uniforms with
Jeter's retirement marks end of Yanks' single-digit numbers
Babe Ruth - Baseball Legend, Record Holder, Legacy
Babe Ruth, Ted Williams: How they shaped MLB - Sports Illustrated
Yankees Retired Numbers
After 65 Years, A Joltin' Discovery at the Hall of Fame
Yankees Retired Numbers
With Derek Jeter's number retired, Yankees shouldn't be retiring
Babe Ruth's Final Appearance at Yankee Stadium
History? This Ruth Just Wants to Make the Yankees - The New York Times
New York Yankees Retired Numbers - Sports Illustrated