Munson: The Life and Death of a Yankee Captain: Appel, Marty: 9780767927550: : Books
Don Mattingly has relaxed the Marlins' facial hair policy
Matt Carpenter joins list of great Yankees mustaches
MLB Power Rankings: The Yankees, Twins and Angels are sitting high; Cardinals and White Sox hit some bumps - The Athletic
New York Yankees - Wikipedia
And now, a definitive power ranking of the Great Yankee Mustache Experiment of 2015
George Steinbrenner - Wikipedia
MLB All-Decade Power Rankings: Giants become dynasty, Yankees and Dodgers choke
The story behind the Yankees' facial hair policy - Pinstripe Alley
MLB Power Rankings: Pirates surprising everyone, Yankees struggling to score
Now for something important: Ranking the Yankees' mustaches
New York Yankees players grow mustaches during hot streak - Sports Illustrated