High and Tight: Our Rock & Roll Baseball Experts Talk Retired Numbers
Madden: Aaron Judge, the Yankees and the upcoming bidding war
How Babe Ruth Changed Baseball, At the Smithsonian
One hundred years later, sale of Ruth to Yankees remains pivotal point in history
Babe Ruth trade to Yankees anniversary
Why Major League Baseball Tried to Rein in Babe Ruth, Essay
The Selling of the Babe
The 1921 New York Yankees – Society for American Baseball Research
BILL BURT: Is Betts trade Babe Ruth revisited?, Sports
Diehard supporters of Yankees, Red Sox are the most passionate in all of sports – New York Daily News
What If The Red Sox Never Sold Babe Ruth To The Yankees? - Future Considerations